The ultimate chocolaty, peanut buttery snack in cookie form.
In a mixing bowl, combine the melted butter and brown sugar and mix in the egg.
Stir in the peanut butter and vanilla until mixed well.
Mix in the flour, salt, baking soda, and mini peanut butter cups until it becomes a cookie dough texture. Chill for one hour.
Scoop cookie dough onto a baking sheet and bake for 8-10 minutes at 350 degrees Fahrenheit.