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Monster Cookie Bars
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Monster Cookie Bars
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Can't decide between a cookie, bar or candy? Now you don't have to! These cookie bars are stuffed full of candy. Just customize the recipe based on your favorites.

Prep time
Bake/Cook time
18 bars
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Monster Cookie Bars
Light Brown Sugar
Prep time :
Bake/Cook time :
Yield :
18 bars


  • 2 cups all-purpose flour
  • 1 1/2 cups old fashioned oats
  • 1 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon fine salt
  • 1 stick (4 ounces) unsalted butter
  • 2 cups packed Dixie Crystals Light Brown Sugar
  • 2/3 cup peanut butter
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup semisweet chocolate chips
  • 1/2 cup M&Ms
  • 1 cup chopped chocolate bars (such as Snickers, Hershey’s, Milky Way, etc.)


  1. Preheat oven to 350°F. Line a 13 by 9-inch baking pan with foil, leaving an overhang on all four sides
  2. In a large bowl combine flour, oats, baking powder, baking soda, and salt.
  3. In a medium saucepan over medium heat, melt butter. Add brown sugar, stirring until completely absorbed and smooth. Remove from heat and stir in peanut butter. Let cool slightly. Add eggs, one at a time, stirring well after each addition. Add vanilla.
  4. Pour butter mixture into flour mixture and stir to combine. Batter will be very thick. Stir in chocolate chips, M&Ms, and chopped chocolate bars.
  5. Spread batter evenly into the prepared pan. Bake for 25 minutes, or until lightly browned. Do not over bake. Allow to cool before cutting into squares to serve to serve. Bars can be stored in an airtight container at room temperature for up to 2 days.


Recipe developed for Dixie Crystals by Tessa Arias @HandletheHeat.

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