Ghost Thumbprint Cookies with White Chocolate Ganache

Ghost Thumbprint Cookies

These thick, dark cocoa cookies hold raised white chocolate ganache ghosts, each with a rounded head, small arms, a pointed tail, and two tiny eyes. The contrast is sharpest with black cocoa, though Dutch-process cocoa makes a dark brown cookie if that is what you have.

The ghost shape starts before baking: a spoon handle pulls one edge of each thumbprint into a tail. Once the cookies are completely cool, thickened ganache fills the wells without spreading flat. The dough needs no routine chilling, but the decorated cookies need time to set before they are packed.

Ingredients for Ghost Thumbprint Cookies

Makes 16 cookies. Prep time: about 30 minutes. Bake time: 8 to 10 minutes per sheet. Total time: about 1 hour 30 minutes, including cooling and setting.

• 1/2 cup unsalted butter, softened (115g)
• 2/3 cup granulated sugar (135g)
• 1 large egg yolk
• 1 teaspoon vanilla extract
• 1/4 teaspoon almond extract
• 1 1/4 cups all-purpose flour (150g)
• 1/3 cup Dutch-process cocoa powder (30g)
• 2 tablespoons black cocoa powder (10g)
• 1/4 teaspoon fine salt
• 1 cup white chocolate chips or finely chopped white chocolate (170g)
• 1/4 cup heavy cream (60g)
• 32 mini semisweet chocolate chips or small dark chocolate sprinkles, for the eyes

If black cocoa is unavailable, replace it with 2 tablespoons Dutch-process cocoa; the cookies will be dark brown rather than nearly black. For a cookie without almond flavor, replace the almond extract with additional vanilla.

How to Make Ghost Thumbprint Cookies

1. Prepare the oven and pans: Heat the oven to 375°F (190°C) with a rack in the center. Line two light-colored baking sheets with parchment paper.
2. Mix the dough: Beat the butter and sugar until combined and slightly creamy. Beat in the egg yolk, vanilla, and almond extract. In a separate bowl, whisk together the flour, both cocoas, and salt. Mix the dry ingredients into the butter mixture on low just until no dry pockets remain. The dough may look sandy at first; keep mixing until it clumps when pressed rather than adding liquid.
3. Shape the thumbprints: Divide the dough into 16 level 1 1/2-tablespoon portions. Roll into balls and place about 2 inches apart on the prepared sheets. Press a broad, shallow well into each with your thumb or the back of a teaspoon. Use the narrow end of a spoon handle to pull one edge of each well outward into a pointed tail, about 1/2 inch long. Leave dough beneath the wells so the cookies stay intact. If the shaped dough feels noticeably soft or greasy, chill the tray for 10 minutes.
4. Bake and cool: Bake one sheet at a time for 8 to 10 minutes, checking at 8 minutes. The tops should look dry rather than shiny, and the edges should be set. Do not wait for browning, which is difficult to see on dark cocoa cookies. Let the cookies rest on the sheet for 5 minutes, then transfer to a rack to cool completely, about 30 minutes.
5. Make the ganache: Put the white chocolate in a heatproof bowl. Heat the cream just until steaming, pour it over the chocolate, and let stand for 2 minutes. Stir until smooth. Let the ganache cool until it is thick but still pipeable and holds a soft mound on a spoon, about 10 to 20 minutes. If it runs off the spoon, give it more time to thicken.
6. Form the ghosts: Spoon the ganache into a small piping bag or a zip-top bag with a small corner snipped off. On each cooled cookie, pipe a rounded head at the top of the well, widen the body through the center, and taper it into the pointed tail. Add two small, rounded arms with the same ganache. Use a toothpick to nudge the arms or sharpen the tail if needed.
7. Add eyes and let set: While the ganache is tacky, place two small dark eyes high on each ghost’s head. Leave the cookies uncovered until the ganache is firm to a light touch, about 30 minutes, before serving or packing.

How to Keep the Ghost Shapes Distinct

Make the center wells broad enough for the ghost bodies, but not so deep that they break through the cookie bases. Shape the pointed tails in the raw dough; trying to press a new tail into a cooled cookie can crack it.

The ganache should mound rather than flow across the well. Pipe the rounded head first, then draw the body toward the tail so the filling stays raised instead of settling into a flat circle.

Serving and Storing Ghost Thumbprint Cookies

Arrange the cookies on a white plate with several ghost faces visible. They can share a Halloween dessert tray with Halloween Brownie Bites with Cookie Bat Wings. For another ghost-shaped treat, try Nutter Butter Ghost Cookies.

Let the ganache set completely before covering or stacking the cookies. For same-day serving, keep them in a single layer in an airtight container at cool room temperature. For longer storage, refrigerate in an airtight container for up to 3 to 4 days as a conservative guideline for the cream-based filling. Place parchment between layers if stacking is necessary, and let the cookies sit at room temperature for 15 to 20 minutes before serving.

The undecorated cookie bases can be baked a day ahead and stored airtight once cool. As a practical make-ahead option, freeze the undecorated bases airtight for up to 1 month; thaw before making fresh ganache and decorating. Avoid freezing or reheating decorated cookies, which can affect the ghost faces.

Nutrition

Approximate per cookie, based on 16 cookies: 200 calories, 2g protein, 11g fat, and 24g carbohydrates. Approximate per 100g of finished cookies: 475 calories, 6g protein, 27g fat, and 57g carbohydrates. Values vary with ingredient brands, decoration amounts, and moisture lost during baking.