I sandwiched glossy dark chocolate ganache between buttery Shortbread Cookies and now I’m hiding them from guests because they disappear in seconds.

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I’m obsessed with these Espresso Walnut Shortbread Cookies because they hit bitter, sweet and crumbly in one bite. I love shortbread that snaps, then melts, and the dark ganache pulls it together.

Shortbread Cookies that get serious about coffee, thanks to 1 tablespoon instant espresso powder, and a ganache made with 8 ounces (225g) dark chocolate, chopped that’s rich but not cloying. Sandwich Cookies with walnut bits make every mouthful interesting, not boring.

They pair with black coffee or a plain cup of tea. Purely snack-level decadence.

I keep coming back for another damn bite, always. No regrets, ever, seriously.

Ingredients

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Unsalted butter: Basically, it makes the shortbread tender and rich, gives that melt-in-mouth feel.
Granulated sugar: Adds clean sweetness and a slight snap in the cookie’s bite.
Powdered sugar: Keeps the texture silky and soft, so it’s not gritty at all.
Vanilla extract: Brings warm, cozy aroma that ties the chocolate and coffee together.
Instant espresso powder: Punchy coffee notes without liquid, wakes up the chocolate flavor.
All-purpose flour: The backbone, gives structure so cookies hold their buttery shape.
Fine salt: Cuts sweetness and brightens everything; you’ll notice it even if subtle.
Walnuts: Adds crunchy contrast and nutty bitterness, makes each bite interesting.
Dark chocolate: Deep, slightly bitter coating that balances the buttery cookie perfectly.
Heavy cream: Makes ganache glossy and smooth, so it coats the cookies nicely.
Butter for ganache: Adds shine and silkiness, makes the ganache set just right.
Espresso in ganache: Plus, a little coffee punch sharpens the chocolate, optional but fun.

Ingredient Quantities

1 cup (225g) unsalted butter, softened

1/2 cup (100g) granulated sugar

1/4 cup (30g) powdered sugar

1 teaspoon vanilla extract

1 tablespoon instant espresso powder

2 1/4 cups (280g) all purpose flour

1/4 teaspoon fine salt

1/2 cup (60g) walnuts, finely chopped (plus extra for rolling if you want)

8 ounces (225g) dark chocolate, chopped (60 to 70 percent cocoa)

2/3 cup (160ml) heavy cream

2 tablespoons unsalted butter, room temperature

1 teaspoon instant espresso powder, optional for the ganache (adds a coffee punch)

How to Make this

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1. Preheat oven to 325°F (163°C). Line a baking sheet with parchment or a silicone mat.

2. In a large bowl beat 1 cup (225g) softened butter with 1/2 cup (100g) granulated sugar and 1/4 cup (30g) powdered sugar until light and fluffy, about 2 to 3 minutes. Mix in 1 teaspoon vanilla extract and 1 tablespoon instant espresso powder until evenly distributed.

3. Stir together 2 1/4 cups (280g) all purpose flour and 1/4 teaspoon fine salt in a separate bowl, then fold the dry ingredients into the butter mixture until just combined. Fold in 1/2 cup (60g) finely chopped walnuts.

4. Turn the dough out onto a sheet of plastic wrap or parchment and shape into a log about 2 inches in diameter. Press and smooth the surface, sprinkle extra chopped walnuts if you want, then wrap tightly. Chill in the fridge until firm, at least 1 hour or up to 24 hours.

5. When chilled, slice the log into 1/4 inch to 3/8 inch thick rounds. Arrange cookies about 1 inch apart on the prepared baking sheet.

6. Bake for 12 to 15 minutes, or until the edges are just turning golden. Rotate the pan halfway if your oven is uneven. Let cookies cool on the sheet for 5 minutes, then transfer to a wire rack to cool completely.

7. While cookies cool, make the ganache. Place 8 ounces (225g) chopped dark chocolate in a heatproof bowl. Heat 2/3 cup (160ml) heavy cream in a small saucepan until it just begins to simmer, then remove from heat. Stir in 1 teaspoon instant espresso powder if using.

8. Pour the hot cream over the chopped chocolate, let sit 1 minute, then whisk gently until smooth. Stir in 2 tablespoons room temperature unsalted butter until glossy. Let ganache cool at room temperature until thick but spreadable, about 20 to 40 minutes; you can chill briefly if needed but check often so it doesn’t get too hard.

9. Spread a teaspoon or so of ganache on the flat side of one cookie and sandwich with another. If desired, roll the edges in extra chopped walnuts while the ganache is still soft. Store finished cookies in a single layer or with parchment between layers in an airtight container at cool room temp or refrigerated for longer keeping.

Equipment Needed

1. Oven (preheats to 325°F / 163°C)
2. Baking sheet lined with parchment paper or a silicone mat
3. Large mixing bowl and a separate smaller bowl
4. Electric hand mixer or stand mixer (or a sturdy wooden spoon if you gotta)
5. Measuring cups and spoons + kitchen scale for accuracy
6. Plastic wrap or extra parchment for shaping and chilling the dough
7. Sharp knife and cutting board (for chopping walnuts and slicing the log)
8. Small saucepan and heatproof bowl (for heating cream and making ganache)
9. Wire cooling rack and a rubber spatula or offset spatula for spreading ganache

FAQ

Q: Can I substitute regular coffee for the instant espresso powder?

A: You can, but use very strong brewed coffee and cut back on liquid elsewhere. I recommend dissolving 1 tablespoon of instant espresso in 1 teaspoon hot water for the dough so you don't change the cookie texture. For the ganache skip extra liquid and just add a tiny splash if needed.

Q: How can I tell when the shortbread is done baking?

A: These cookies should look set and just a touch pale golden at the edges. They won't darken much. If they feel firm to the touch and lift cleanly from the pan, they are done. Overbaking makes them dry so watch them closely near the end.

Q: My ganache is too thick or too thin. How do I fix it?

A: If it's too thick warm it gently and stir in a teaspoon of hot cream at a time until smooth. If it's too thin let it cool at room temp or pop it in the fridge for a few minutes to thicken. Stirring helps even it out. Don't overheat chocolate or it'll seize.

Q: Can I use other nuts instead of walnuts?

A: Yes, pecans or almonds work great. Chop them finely so they mix into the dough and don't make the cookies crumbly. Toasting the nuts first gives more flavor, but let them cool before adding to the dough.

Q: How far ahead can I make these cookies and the ganache?

A: The baked shortbread keeps in an airtight container at room temp for about 4 days. You can freeze the plain cookies for up to 3 months. Ganache will keep in the fridge for a week, bring to room temp and re-whisk before using. If you top cookies with ganache, store them in the fridge and let them come to room temp before eating for best texture.

Q: Any tips for rolling cookies in extra chopped walnuts or getting a clean chocolate top?

A: For nuts, press them gently into the dough before baking so they stick. For a glossy ganache finish, pour while the ganache is warm and smooth with an offset spatula. Chill briefly to set, then avoid stacking until fully set or the chocolate will smudge.

Espresso Walnut Shortbread Cookies With Dark Chocolate Ganache Recipe Substitutions and Variations

Unsalted butter (1 cup)
- Use salted butter, same amount, and skip or cut back the added salt in the dough.
- Solid coconut oil, 1:1, for a slightly coconutty flavor and firmer texture when chilled.
- Plant-based buttery spread, 1:1, if you need dairy free. Texture will be a bit softer.
Granulated sugar (1/2 cup)
- Light brown sugar, 1:1, adds molasses notes and makes the cookies a tad chewier.
- Coconut sugar, 1:1, for a deeper caramel taste and slightly darker color.
- Superfine sugar, same amount, if you want a finer crumb and faster dissolving.
All purpose flour (2 1/4 cups)
- Pastry flour, swap cup for cup for a more tender, crumbly shortbread.
- 1-to-1 gluten free flour blend, same measure, if you need gluten free. Check blend has xanthan or guar.
- Half all purpose and half almond flour, by volume, for nuttier taste but expect a more fragile cookie.
Dark chocolate (8 oz) and heavy cream (2/3 cup) for the ganache
- Semi sweet chocolate or chocolate chips, same weight, for a sweeter ganache.
- Use equal parts chocolate and coconut cream instead of heavy cream for dairy free ganache.
- Mix dark chocolate with a few tablespoons of strong brewed espresso instead of the optional instant espresso to punch up the coffee flavor.

Pro Tips

1. Chill the dough longer than you think, like overnight if you can, it firms up and slices cleaner so you get neater cookies instead of crumbling messes.

2. Toast the walnuts briefly in a dry skillet till they smell nutty, let them cool, then chop, it brings out more flavor and keeps the nuts from tasting bland next to dark chocolate.

3. When making ganache heat the cream just to a simmer, not a boil, and pour it over the chopped chocolate in two stages, letting it sit a minute each time, this prevents seizing and gives a silkier finish.

4. If your ganache gets too stiff chill it a few minutes but check every 5 minutes, then bring it back to spreadable by resting at room temp or stirring gently, don’t try microwaving it aggressively or you’ll ruin the gloss.

Espresso Walnut Shortbread Cookies With Dark Chocolate Ganache Recipe

Recipe by Louise Nightin

0.0 from 0 votes

I sandwiched glossy dark chocolate ganache between buttery Shortbread Cookies and now I’m hiding them from guests because they disappear in seconds.

Servings

servings

Calories

235

kcal

Equipment: 1. Oven (preheats to 325°F / 163°C)
2. Baking sheet lined with parchment paper or a silicone mat
3. Large mixing bowl and a separate smaller bowl
4. Electric hand mixer or stand mixer (or a sturdy wooden spoon if you gotta)
5. Measuring cups and spoons + kitchen scale for accuracy
6. Plastic wrap or extra parchment for shaping and chilling the dough
7. Sharp knife and cutting board (for chopping walnuts and slicing the log)
8. Small saucepan and heatproof bowl (for heating cream and making ganache)
9. Wire cooling rack and a rubber spatula or offset spatula for spreading ganache

Ingredients

1 cup (225g) unsalted butter, softened
1/2 cup (100g) granulated sugar
1/4 cup (30g) powdered sugar
1 teaspoon vanilla extract
1 tablespoon instant espresso powder
2 1/4 cups (280g) all purpose flour
1/4 teaspoon fine salt
1/2 cup (60g) walnuts, finely chopped (plus extra for rolling if you want)
8 ounces (225g) dark chocolate, chopped (60 to 70 percent cocoa)
2/3 cup (160ml) heavy cream
2 tablespoons unsalted butter, room temperature
1 teaspoon instant espresso powder, optional for the ganache (adds a coffee punch)

Directions

Preheat oven to 325°F (163°C). Line a baking sheet with parchment or a silicone mat.
In a large bowl beat 1 cup (225g) softened butter with 1/2 cup (100g) granulated sugar and 1/4 cup (30g) powdered sugar until light and fluffy, about 2 to 3 minutes. Mix in 1 teaspoon vanilla extract and 1 tablespoon instant espresso powder until evenly distributed.
Stir together 2 1/4 cups (280g) all purpose flour and 1/4 teaspoon fine salt in a separate bowl, then fold the dry ingredients into the butter mixture until just combined. Fold in 1/2 cup (60g) finely chopped walnuts.
Turn the dough out onto a sheet of plastic wrap or parchment and shape into a log about 2 inches in diameter. Press and smooth the surface, sprinkle extra chopped walnuts if you want, then wrap tightly. Chill in the fridge until firm, at least 1 hour or up to 24 hours.
When chilled, slice the log into 1/4 inch to 3/8 inch thick rounds. Arrange cookies about 1 inch apart on the prepared baking sheet.
Bake for 12 to 15 minutes, or until the edges are just turning golden. Rotate the pan halfway if your oven is uneven. Let cookies cool on the sheet for 5 minutes, then transfer to a wire rack to cool completely.
While cookies cool, make the ganache. Place 8 ounces (225g) chopped dark chocolate in a heatproof bowl. Heat 2/3 cup (160ml) heavy cream in a small saucepan until it just begins to simmer, then remove from heat. Stir in 1 teaspoon instant espresso powder if using.
Pour the hot cream over the chopped chocolate, let sit 1 minute, then whisk gently until smooth. Stir in 2 tablespoons room temperature unsalted butter until glossy. Let ganache cool at room temperature until thick but spreadable, about 20 to 40 minutes; you can chill briefly if needed but check often so it doesn’t get too hard.
Spread a teaspoon or so of ganache on the flat side of one cookie and sandwich with another. If desired, roll the edges in extra chopped walnuts while the ganache is still soft. Store finished cookies in a single layer or with parchment between layers in an airtight container at cool room temp or refrigerated for longer keeping.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.