Peanut Butter Oatmeal Chocolate Chip Mug Cookie

Makes one mug cookie


  • 1 Tbsp butter
  • 1 Tbsp brown sugar
  • 1 egg yolk
  • ¼ tsp vanilla
  • 1 heaping Tbsp peanut butter (any kind)
  • ¼ cup oats
  • 1 Tbsp flour
  • pinch of salt
  • 1 Tbsp chocolate chips


  1. Whisk butter, brown sugar, egg, and vanilla together in a microwave safe mug.
  2. Stir in peanut butter, then oats, flour, and salt. Stir in chocolate chips.
  3. Spray edges of mug or grease with butter.
  4. Microwave 40 seconds or so. Let cool before eating.

Microwaves vary, cook from 40-60 seconds. Let cool before eating, it is very hot on the inside.