Chocolate Peanut Butter Cookies

Step 1
Place oats in a blender or food processor and pulse until oats resemble flour. Transfer oats to a large bowl and stir in flour, cocoa powder, baking powder, baking soda, and salt.

Step 2
Beat butter, milk, peanut butter, white sugar, and brown sugar in another bowl until light and fluffy. Beat in eggs one at a time, allowing each egg to blend into the butter mixture before adding the next. Beat in vanilla extract with the last egg; stir in oat mixture until well blended. Fold in peanut butter chips, mixing just enough to evenly combine. Refrigerate dough for 30 minutes.

Step 3
Preheat oven to 350 degrees F (175 degrees C).

Step 4
Drop 1-inch spoonfuls of dough 2 inches apart onto ungreased baking sheets.

Step 5
Bake in preheated oven until cookie centers are set, 10 to 12 minutes.