- 1 cup hazelnuts (5 oz.)
- 1 stick (8 Tbs.) unsalted butter
- 6 squares (6 oz.) unsweetened chocolate, coarsely chopped
- 2 cups Sugar
- 4 large eggs
- 2 tsp. vanilla extract
- 2 cups all-purpose flour
- 2 tsp. baking powder
- 1/2 tsp. salt
- Confectioners’ Sugar for coating
Preheat oven to 325 °F. Spread hazelnuts on baking sheet and bake until skins blister and nuts are fragrant, 12 to 13 minutes. Slide nuts onto a kitchen towel, fold towel over and rub vigorously to remove skins; don’t be concerned if little bits adhere to nuts. Cool nuts
In medium bowl, mix flour, baking powder and salt. Add to batter, about half at a time, beating well after each addition (dough will be very soft). Cover and refrigerate for at least 6 hours or overnight.
Preheat oven to 325 °F. Grease two large baking sheets or line with parchment paper. Pinch off pieces of dough and roll into 1 1/2-inch balls. Roll in confectioners’ Sugar, coating well, then place on prepared baking sheets, spacing about 3 inches apart. Bake until puffy and seem underdone when poked, about 13 minutes. Transfer baking sheets to wire racks and cool 10 minutes, then remove cookies to rack and cool completely.