Peanut Butter Chip Chocolate Cookies

Heat oven to 350 ºF. Line 2 baking sheets with parchment paper. In a bowl, whisk together the flour, cocoa, baking powder and salt. Using an electric mixer, beat the butter and sugar in a large bowl on medium speed until fluffy. Beat in the eggs, one at a time. Reduce the mixer speed to low and add the flour mixture, mixing just until combined (the batter will be very stiff). Stir in the peanut butter chips. Drop rounded Tbsp-size mounds of the batter 2 in. apart on the prepared baking sheets. Bake until firm around the edges but still soft in the middle, 10 to 12 minutes. Let the cookies cool for 5 minutes on the baking sheets before transferring to wire racks to cool completely. Fill canning or other glass jars with the cookies or line a shirt-sized box with tissue or parchment paper and place them inside.