Acorn Linzer Sandwich Cookies
Ingredients 2 cups unbleached all-purpose flour, plus more for dusting 1/2 teaspoon baking powder 3/4 cup pecan halves (3 ounces), toasted 2 tablespoons confectioners' sugar, plus more for sprinkling 1/8 teaspoon kosher salt 1/8 teaspoon ground cinnamon 1 stick cold unsalted butter, cut into small pieces 1/4 cup granulated sugar 1 teaspoon pure vanilla extract 1 large egg, room temperature 1/2 cup cherry jam, whisked Preparation In a medium bowl, whisk together flour and baking powder....