Gluten-Free Chocolate Peanut Butter Cup Cookies

Ingredients

• 1/2 cup (1 stick) unsalted butter, softened
• 2/3 cup brown sugar
• 1/3 cup white sugar
• 1 egg
• 1 teaspoon vanilla extract
• 1/2 teaspoon baking soda
• 1/2 teaspoon Kosher salt
• 1 cup cocoa powder
• 1 cup peanut butter cups, chopped*
• *chop peanut butter cups to the approximate size of chocolate chips