Indulge in the exquisite charm of **Thumbprint Cookies**, a classic confection perfected with the delightful combination of toasted hazelnuts and a rich white chocolate ganache. These elegant cookies are more than just a sweet treat; they’re a testament to simple sophistication, perfect for sharing with loved ones, gifting during holidays, or simply enjoying as a well-deserved personal indulgence.
While these hazelnut thumbprint cookies appear exquisitely delicate and perhaps complicated to prepare, they are surprisingly straightforward. Don’t let their elegant facade fool you; the recipe is fundamentally easy to follow, allowing you to create a gourmet-level dessert without excessive fuss. Imagine presenting these beautifully adorned cookies, each with a creamy “kiss” of white chocolate, to family or guests – they’ll be utterly captivated. This recipe ensures that your baking secret remains just that: a secret!
–Julia M. Usher
Mastering Ganache: Why It Splits and How to Fix It
A perfectly smooth, luscious ganache is the crowning glory of these thumbprint cookies, but occasionally, it can go awry, leaving you with a grainy or oily mess. The most common culprit for a split ganache lies in temperature control. Understanding the science behind ganache, which is essentially an emulsion of fat (from chocolate) and water (from cream), is key to preventing and fixing this issue.
When cream and chocolate are combined, the fat molecules from the chocolate disperse evenly throughout the liquid. If the mixture gets too hot, or if it cools too rapidly while being stirred, these delicate fat molecules can separate from the liquid, leading to a “split” or “broken” ganache. This results in a greasy texture and a curdled appearance, far from the desired silky consistency. Over-mixing can also introduce too much air or stress the emulsion, causing it to break.
Troubleshooting and Prevention Tips for Perfect Ganache:
- Mind the Temperature: Always ensure your cream is heated to just below a boil (scalded), but never fully boiling. For the chocolate, ensure it’s finely chopped or ground. When combining, the hot cream should melt the chocolate gradually.
- Gentle Mixing: After pouring the hot cream over the chocolate, let it sit undisturbed for 1-2 minutes. This allows the heat to evenly melt the chocolate. Then, begin whisking gently from the center outwards in small circles, gradually incorporating more of the chocolate until it’s fully melted and smooth. Aggressive whisking can introduce air and cause separation.
- Fixing a Split Ganache: Don’t despair if your ganache splits!
- Method 1 (Warm it up): If the ganache is too cold, gently warm it over a double boiler, stirring constantly until it comes back together. Add a teaspoon of warm cream or milk if needed.
- Method 2 (Cool it down): If it’s too hot and oily, let it cool slightly. Then, whisk in a tablespoon of cold cream, one at a time, until it emulsifies again.
- Method 3 (Start a new emulsion): For severely split ganache, take a tablespoon of the split ganache and microwave it for 5-10 seconds until it’s very warm. Gradually whisk this warm portion back into the main batch, a teaspoon at a time, until the emulsion reforms.
- Quality Ingredients: Using high-quality white chocolate (with a higher cocoa butter content) will always yield better results and a more stable ganache.
- Avoid Overheating: If the chocolate doesn’t melt completely after the initial whisking, place the bowl over a double boiler with barely simmering water (the bowl should not touch the water). Stir frequently until smooth, removing it from the heat as soon as it’s fully melted.
By understanding these principles, you can confidently create a flawless white chocolate ganache that perfectly complements the nutty crunch of these delectable thumbprint cookies.
Hazelnut Thumbprint Cookies with White Chocolate Ganache
David Leite
Saved
Dessert
American
36
cookies
204
kcal
30 minutes
45 minutes
4 hours
Ingredients
For the thumbprint cookies
-
2
cups
all-purpose flour -
1/4
cup
lightly toasted chopped hazelnuts, with their skins intact, cooled -
1/2
teaspoon
salt -
2
sticks (8 oz)
unsalted butter, slightly softened -
1/2
cup
firmly packed light brown sugar -
2
large
eggs, separated -
2 1/2
teaspoons
hazelnut extract -
1
teaspoon
vanilla extract
-
1 3/4
cups
untoasted chopped hazelnuts, with their skins intact, for coating the cookies
For the white chocolate ganache filling
-
12
ounces
premium white chocolate, finely chopped or ground in a food processor -
3/4
cup
heavy cream -
1
tablespoon
corn syrup -
3/4
teaspoon
hazelnut extract
Decoration (optional)
-
About 1/4
cup
lightly toasted, coarsely chopped hazelnuts, (with skins), cooled, or 3 1/2 to 4 dozen large (3 mm) silver dragées
Instructions
Make the thumbprint cookies
-
Preheat your oven to 350°F (175°C) and position a rack in the center. Prepare 2 or more baking sheets by lining them with parchment paper. This prevents sticking and ensures even baking.
-
In a food processor fitted with a metal blade, combine the flour, the 1/4 cup of lightly toasted hazelnuts, and salt. Process until the hazelnuts are finely ground, ensuring they retain some texture rather than becoming a paste. In the bowl of an electric mixer fitted with a paddle attachment, beat the butter and brown sugar on medium speed for 1 to 2 minutes, until the mixture is light and fluffy. Add the egg yolks and both hazelnut and vanilla extracts, continuing to beat and scraping down the bowl as necessary, until the ingredients are thoroughly blended. Reduce the mixer speed to low and gradually add the flour mixture, blending just until everything is incorporated to form the cookie dough.
-
Finely chop the 1 3/4 cups of untoasted hazelnuts and spread them in a shallow layer in a large bowl or cake pan. This will be your coating station. Roll the cookie dough between your palms into uniform 1-inch balls. For best results, use a level 1 3/8-inch (#70) scoop or two level teaspoons to portion the dough first, then roll into perfect spheres. If the butter was too soft, the dough might be sticky; a brief refrigeration can help firm it up. However, avoid over-chilling, as the dough may crack when you create the indentations.
-
Whisk the egg whites in a small bowl until they are frothy. Take one dough ball at a time, lightly coat it with the beaten egg white, then roll it in the untoasted hazelnuts, ensuring an even coating. Gently roll the ball between your palms once more to firmly set the nuts in place. Repeat this process with the remaining dough and hazelnuts, arranging the coated cookies about 1 inch apart on the prepared baking sheets.
-
Using your thumb or the rounded end of a spoon handle, create a cup-shaped indentation in the center of each cookie. Bake for 12 to 14 minutes. It’s important to re-press the indentations midway through the baking process, as they tend to puff up. The cookies are done when their bottoms are lightly browned. Immediately transfer the baked cookies to wire racks to cool completely. These unfilled cookies can be stored in airtight containers at room temperature for up to one week, offering a convenient make-ahead option.
Make the ganache filling
-
Begin preparing the ganache only when you are ready to fill the cookies, as it does not store well once made. Place the finely chopped or ground premium white chocolate in a large bowl, spreading it into a shallow layer. Set this aside.
-
Pour the heavy cream into a medium (3-quart) nonreactive saucepan. Place it over medium to medium-high heat, warming the cream just until it is almost scalded. This means heating the cream to just below its boiling point; you should see steam rising, but no bubbles should break on the surface.
-
Immediately strain the hot cream through a fine-meshed sieve directly over the chopped white chocolate. Allow the mixture to sit for 1 to 2 minutes without stirring; this helps the chocolate melt evenly. Then, gently whisk the mixture until the chocolate is entirely melted and smooth. If any chocolate chunks remain, set the bowl over a double boiler (a bowl set over, but not touching, barely simmering water) and stir frequently until completely smooth. Crucially, do not overheat the ganache, or it may split. Once smooth, stir in the corn syrup until fully incorporated, followed by the hazelnut extract. Remove from heat, cover with plastic wrap pressed directly against the surface to prevent a skin from forming, and chill for approximately 20 minutes, or until it has slightly thickened.
-
Transfer the chilled ganache to the bowl of an electric mixer fitted with a whip attachment. Beat on medium speed just until the ganache lightens in color and holds the “tracks” left by the beater. Be careful not to overbeat, as this can cause the ganache to break and become grainy. Promptly proceed to assemble the thumbprint cookies.
Assemble the thumbprint cookies
-
Work quickly to assemble the cookies before the ganache sets. Fit a pastry bag with a medium (3/8-inch) 6- to 8-pronged star tip, then fill the bag with the prepared ganache. As an alternative, you can scoop the ganache into a large resealable plastic bag and snip off one corner. Hold the pastry bag’s tip perpendicular to the cookie and pipe a delicate rosette (or a neat dollop) into the indentation by moving the bag in a tight circle. Quickly pull the bag upwards or to the side to create a subtle peak. If piping is not an option, simply use a teaspoon to carefully spoon the filling into each indentation. Repeat this process for all remaining cookies and ganache. For decoration, top each cookie with a piece of coarsely chopped hazelnut for an earthy touch, or opt for a single silver dragée for an extra festive sparkle. Serve these delightful cookies at room temperature for the best flavor and texture. Filled cookies should be stored in the refrigerator for no more than 2 to 3 days to maintain their quality, as prolonged storage can make them quite soft. These hazelnut thumbprint cookies are a timeless treat that will surely become a staple in your baking repertoire. Originally published July 27, 2009.
Adapted From
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Scale
Summarize
Nutrition
Serving:
1
cookie
Calories:
204
kcal
Carbohydrates:
16
g
Protein:
3
g
Fat:
15
g
Saturated Fat:
7
g
Monounsaturated Fat:
6
g
Trans Fat:
0.2
g
Cholesterol:
31
mg
Sodium:
48
mg
Fiber:
1
g
Sugar:
10
g
Nutrition information is automatically calculated, so should only be used as an approximation.
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Recipe Testers’ Reviews
Lisa Bennett
From the first mention of hazelnut, I was completely captivated. As a lover of cookies with nuts, these were absolutely delicious! They are truly the perfect cookie for tea time, holiday gatherings, and an ideal companion for espresso or coffee. The aroma of toasted hazelnuts is heavenly, and the taste is even better, complemented by a delightful texture. While they are perfectly fine without the ganache, they become absolutely scrumptious with that exquisite white chocolate topping. These hazelnut thumbprint cookies have undoubtedly earned a permanent spot in my baking repertoire.
During the baking process, I made sure to rotate the pans midway through, in addition to re-pressing the cookie indentations with the back of a quarter teaspoon measure, ensuring perfectly shaped cups for the ganache.
I found the ganache a bit on the sweet side for my personal preference, as I’m not the biggest fan of white chocolate. I specifically sought out the best-tasting white chocolate I could find, but next time I might adjust the amount to reduce the sweetness. It made me wonder if the corn syrup was strictly necessary for my taste. The suggested chilling time for the ganache was accurate, taking about 30 minutes for my batch to reach the ideal consistency. It came together beautifully, and I thoroughly enjoyed using my pastry bag with a star tip to achieve the elegant finish.
Each holiday season, I prepare cookie trays as gifts, and these thumbprint cookies will definitely be included. I decorated my batch with chopped hazelnuts. For holiday trays, I would certainly opt for the festive silver dragées. Despite the effort, these cookies are well worth the time invested for such a rewarding outcome.
Annie A.
These cookies offer a wonderful twist, akin to deconstructed chocolate-chip cookies but featuring luxurious white chocolate and an abundance of hazelnuts. They are absolutely wonderful! I can easily envision this recipe becoming a beloved staple in any holiday cookie collection, yielding very happy results. With their crumbly, buttery texture perfectly complemented by a creamy dollop of frosting-like ganache, I predict these delicious treats will vanish from any cookie plate incredibly fast.
Lori Widmeyer
These cookies truly live up to their promise! One bite, and anyone will be under their spell, practically begging for more. My tasters showered them with praise: “Nutty, creamy perfection!” “An eleven out of ten!” and “Mmmmm!” This recipe is undeniably a labor of love, and it does generate a fair number of dirty dishes, but the exquisite results make every minute worthwhile. I had eagerly anticipated making this recipe for months, yet hazelnut extract proved elusive. Unable to wait any longer, I successfully substituted almond extract for hazelnut extract and almonds for hazelnuts. While I can’t speak to how much it altered the original flavor, even with this substitution, these cookies were a perfect 10 in my book.
My dough came together easily but was initially a bit sticky due to the butter being too close to room temperature. A quick 30-minute chill in the refrigerator resolved this. By the time I finished shaping all the cookies, the last portion of the dough was a little warm for perfectly pretty balls, but it still held its shape beautifully once rolled in the nuts.
A notable advantage of this recipe is its efficiency; there’s very little waste. Often, when preparing an egg wash or a crumb coating, you end up with excess ingredients. Not so with these cookies. I found myself tilting the bowl of egg whites to coat the final few dough balls, and I had less than a quarter cup of unused nuts left over, which is fantastic.
Feel free to generously fill your baking sheets, as these cookies do not spread significantly during baking. I ultimately yielded 44 cookies from the batch. The initial indentation you make in the dough ball will completely disappear as the cookies bake. To counter this, I re-pressed the indentations midway through baking for some batches. For others, I was busy with the ganache and simply re-did the indentations immediately after removing the cookies from the oven. I couldn’t discern any difference in the final appearance. It’s also quite tricky to judge doneness by sight alone; I removed mine after 12 minutes, and they were absolutely perfect.
If you begin preparing your ganache halfway through the cookie baking process, you’ll find it’s ready to fill your cookies just as the last batch has cooled. After 20 minutes in the refrigerator, my ganache mixture was cool but not cold. I didn’t observe a significant change to a whiter shade, but I stopped mixing once the ganache clearly showed the distinct tracks left by the whisk attachment. The ganache is wonderfully easy to work with and holds its shape beautifully atop the cookies. I ended up with about a cup more than I needed, but I have no doubt I’ll find other delicious ways to use it! As an aside, scalding the cream evoked heartwarming memories of my Naunie – my father’s mother – teaching me to scald milk for her beloved banana pudding, a cherished recipe I still make. The results from these cookies are so delightful, your grandchildren might one day recall you and those cherished moments of learning to scald cream for this very recipe.
I will most certainly be making this recipe again and again! And now, I’m even more determined to track down hazelnut extract so I can experience the original version.