Baked triple peanut butter oatmeal bars are thick, soft, chewy, and delicious with triple the peanut butter flavor! Easy to make in just 30 minutes time!
First use an electric hand mixer and cream together butter, sugar, and brown sugar until combined. Add the egg, peanut butter, and vanilla, and mix until well combined.
Next stir in the oats by hand until evenly incorporated. Lastly, stir in the flour by hand until just combined, being careful to not overmix.
In a small mixing bowl, combine the flour, brown sugar, peanut butter, and softened butter to make the streusel. Mix until a crumbly consistency is reached, but do not overmix. Sprinkle evenly over top the peanut butter oatmeal bars batter.
Bake at 350 degrees for 25-28 minutes until bars are lightly golden.
Remove bars from oven and let cool for 15-30 minutes before adding the peanut butter drizzle over the bars.
Peanut Butter Drizzle
While the peanut butter oatmeal bars are baking, use a whisk and combine powdered sugar, peanut butter, and milk in a small bowl. Add milk in 1/2 tbsp at a time until a drizzling consistency is reached. Place in the fridge until ready to use.
For an easy mess-free drizzle, place peanut butter drizzle in a decorator’s bag or Ziploc bag with the corner snipped off, and drizzle as desired.
Let bars set for 10 minutes before cutting, then serve and enjoy!
Store remaining peanut butter oatmeal bars in an airtight container at room temperature for up to 5 days.