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Peanut Butter Oatmeal Sandwich Cookies with Marshmallow Creme Filling

Rachel Conners
  • 40 minutes
  • Serves 12

INGREDIENTS

1 stick

unsalted butter (softened)

3/4 cup

firmly packed light brown sugar

1/4 cup

granulated sugar

1 tbsp

vanilla extract

1/2 cup

creamy peanut butter

1

large egg

3/4 cup

quick oats

1 cup

all-purpose flour

1/2 tsp

baking powder

1/2 tsp

baking soda

1/2 tsp

cinnamon

1/2 tsp

salt

7 oz

jar Marshmallow Fluff

1/2 cup

unsalted butter (softened)

1/3 cup

powdered sugar

1 tbsp

vanilla extract

1/8 tsp

salt