Monster Cookie Bars

Monster Cookie Bars

from fivehearthome.com

Ingredients

  • 4 eggs
  • 1 1/2 cups sugar
  • 1 cup brown sugar
  • 3/4 teaspoon salt
  • 1 tablespoon pure vanilla extract
  • 2 cups (16-ounce jar) peanut butter (creamy or crunchy)
  • 5 tablespoons butter (at room temperature)
  • 2 1/2 teaspoons baking soda
  • 18 ounces (1 small tub) old-fashioned rolled oats
  • 1 cup M&Ms
  • 1/2 cup semisweet chocolate chips
  • 1/2 cup peanut butter chips

Directions

  1. 1

    Position rack in center of oven and preheat to 350°F. Generously butter a 18x13x1-inch rimmed half sheet pan. Set aside.

  2. 2

    In a very large bowl (using a spoon or an electric mixer), mix together the eggs and sugars until well-combined. Beat in the salt, vanilla, peanut butter, and butter until smooth. Stir in the baking soda (make sure there aren't any lumps) and the oats, then add the M&Ms, chocolate chips, and peanut butter chips and mix until just combined.

  3. 3

    Spread the batter into the prepared baking pan, smoothing the top into an even layer and pressing down firmly. Bake for 16 to 22 minutes or until edges are very light golden brown and center is set. Allow to cool in the baking pan before slicing and serving.