Peanut Butter Swirl Brownies - Gluten Free Follow Me

Ingredients

• ½ cup butter, very softened
• 1 cup granulated sugar
• 2 eggs
• 1 tsp pure vanilla extract
• ½ cup GF all-purpose flour
• ⅓ cup unsweetened cocoa powder
• ¼ tsp baking powder
• ¼ tsp salt
• a few spoonfuls of smooth peanut butter (or nut butter of your choice)