Copycat Crumbl Oatmeal Marshmallow Cookie

Ingredients

  • ½ cup butter
  • ¾ cup brown sugar
  • 1 egg
  • 1 tsp vanilla
  • 1 cup rolled oats
  • 1 cup flour
  • ½ tsp baking soda
  • ½ tsp salt
  • ½ cup mini marshmallows

Instructions

1. Make dough

Cream butter and brown sugar.

Add egg and vanilla.

Mix in oats, flour, baking soda, and salt.

Fold in marshmallows.

2. Bake

Bake at 350°F for 10–12 minutes.

Tips

  • Use rolled oats for best texture
  • Add extra marshmallows on top after baking for visual

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