• Prep Time: 15 mins
  • Cooking Time: 25 mins
  • Serves: 48

Monster Cookie Bars Recipe

  • Recipe Submitted by on

 Ingredients List

  • 2 tsp baking soda
  • 2 tsp water
  • 1/2 cup butter
  • 1/2 cup shortening
  • 1 cup peanut butter
  • 1 1/2 cups brown sugar
  • 1 1/2 cups granulated sugar
  • 4 eggs
  • 2 tsp vanilla
  • 2 tsp salt
  • 3 cups flour
  • 2 cups quick oats
  • 1 cup M&M's
  • 1 cup semi-sweet chocolate chips


Preheat the oven to 350 degrees.
Start by mixing together the baking soda and water in a small bowl, set aside.
In a stand mixer with a large bowl, cream together butter, shortening, peanut butter and sugars.
Add the eggs, vanilla and salt.
Mix in the baking soda/water mixture.
Add flour, one cup at a time, mixing well after each addition.
Add the quick oats, mix well.
Stir in M&M’s and chocolate chips.
Spread the dough in a greased jelly roll pan measuring about 15×10 or half a sheet pan measuring about 16×12 and bake at 350 degrees for 20-25 minutes, until golden brown.

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