These two-bite treats are for anyone who loves the combination of chocolate and hazelnuts. Hidden beneath a crunchy topping of toasted nuts is a dollop of chocolate hazelnut spread, which oozes like the middle of a molten lava cake when a cookie is served warm. For the creamiest centers, drop or pipe teaspoonfuls of the chocolates hazelnut spread on a parchment paper-lined pan and freeze until firm. Press those frozen mounds into the centers of the raw cookie dough rounds and bake. Whether you do that or simply drop the spread straight from the particular jar (as instructed below), you’ll end up with crackly-edged, fudgy cookies.
- 4 ounces/113 grams bittersweet chocolate, broken into pieces
- 1 tablespoon unsalted butter
- ¼ teaspoon fine salt
- 1 large egg, room temperature
- ⅓ cup/78 grams granulated sugar
- ½ teaspoon vanilla extract
- ¼ cup/34 grams all-purpose flour
- ⅓ cup/110 grams chocolate hazelnut spread
- ¼ cup/35 grams roasted and skinned hazelnuts, chopped
Melt the chocolate and butter in a bowl set over a saucepan of gently simmering water, stirring until smooth. Stir in the salt, remove from the heat.
Whisk the egg and sugar in a large bowl by hand or using an electric mixer until pale yellow plus foamy, 3 to 5 minutes. Beat in the vanilla. Add the chocolate mixture and stir gently with a spatula till all the streaks are shades of brown.
Add the particular flour and stir softly until no traces of flour remain. Drop tablespoons of dough onto a parchment paper-lined cookie sheet in rounds, spacing 2 inches apart. If the tops are rounded, gently press them flat. Refrigerate until stiffened, at least 15 minutes and up to overnight.
Heat oven to 375 degrees.
Using a pastry bag or resealable plastic bag with a ½-inch hole cut in a corner, or a teaspoon measuring spoon, pipe or drop dollops of chocolate-hazelnut spread on top of the dough, leaving the border of dough uncovered. Sprinkle the tops with hazelnuts.
Bake until the cookie dough looks crackled and just dry, 8 to 10 minutes. Cool on the sheets and enjoy warm or at room temperature. These cookies taste best on the day they’re baked, but will keep for up to two days in an airtight container at room temperature.