Preheat oven to 350°F. 

Line a cookie sheet with parchment paper or foil

Combine oats, flour, brown sugar, sugar, baking powder, baking soda and peanuts in a large bowl

In a smaller bowl, whisk together creamy peanut butter, softened butter, eggs, and vanilla 

Add to flour mixture; stir until combine. 

Gently stir in peanut butter cups.

Use a 1/4-cup measure or scoop to drop mounds of dough about 4 inches apart onto prepared cookie sheet. 

Flatten dough mounds to about 3/4 inch thick.

Bake for 12 to 14 minutes or until edges are brown.

Cool on cookie sheet for 1 minute

Transfer to a wire rack and let cool