- 3/4 cup butter, softened
- 3/4 cup peanut butter
- 3/4 cup white sugar
- 3/4 cup brown sugar
- 1 1/2 cups all-purpose flour
- 1 1/2 cups rolled oats
- 1 1/2 teaspoons vanilla extract
- 2 eggs
- 2 teaspoons salt
- 1/2 cup peanut butter, or as needed
Preheat oven to 325 degrees F (165 degrees C). Grease a jelly-roll pan.
Beat butter, 3/4 cup peanut butter, white sugar, and brown sugar together in a large bowl until creamy. Add flour, oats, vanilla extract, eggs, and salt; stir until just mixed. Spread batter into the prepared jelly-roll pan.
Bake in the preheated oven until lightly browned, about 20 minutes. Cool brownies in the pan for 10 to 15 minutes. Spread 1/2 cup peanut butter on top of brownies.