In a medium bowl, combine the softened butter and peanut butter, and beat until creamy using an electric mixer on medium speed.
Add the sugar slowly while beating, and mix until combined.
Add the egg and vanilla, and beat to combine.
Next, evenly sprinkle the almond flour, baking powder and salt on top. Beat to combine.
Chill the dough for 30 minutes in the fridge.
Preheat oven to 350, and line a baking sheet with parchment paper. Using a cookie scoop, portion out 12 dough balls onto the baking sheet. Bake for 10-11 minutes, until golden brown on the edges. These cookies puff up, but then deflate and crackle as they cool
Added chopped hazelnuts and or other nuts
