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Stack of loaded cookie bar squares

Loaded Cookie Bars

Loaded Cookie Bars are stuffed with Oreo cookies, M&M's, and Reese's candy but you can toss in whatever you want! They're thick, chewy, and scrumptious. Perfect for leftover Halloween candy! No mixer required.

Course Dessert
Cuisine American
Keyword halloween
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Yields: 24 bars
Recipe by Tessa Arias

Ingredients

  • 2 sticks (227 grams) unsalted butter, melted
  • 1/2 cup (100 grams) granulated sugar
  • 1 1/4 cups (250 grams) packed dark brown sugar
  • 2 teaspoons vanilla extract
  • 2 large eggs plus 1 egg yolk, at room temperature
  • 1 1/4 cups (159 grams) all-purpose flour
  • 1 cup (127 grams) bread flour (use all-purpose if you don't have bread flour)
  • 1 teaspoon baking soda
  • 1 teaspoon fine sea salt
  • 20 Oreo cookies, chopped
  • 1 cup M&M candies
  • 1 cup chopped Reese’s (or other chocolate candy)

Directions

  1. Preheat the oven to 350°Line a 9 by 13-inch pan with parchment paper and spray with nonstick cooking spray.
  2. In a large bowl, vigorously stir the melted butter, granulated sugar, and brown sugar until very well combined. Add in the vanilla, eggs, and egg yolk and stir until well combined. Gradually add in the flours, baking soda, and salt and stir until just combined. Fold in the Oreos, M&M’s, and Reese’s, reserving some to sprinkle on top.
  3. Remove the dough to the prepared pan, pressing evenly. Sprinkle with the reserved candy, pressing down lightly with a spatula. Bake for 25 minutes, or until golden brown but not overcooked. Cool completely before cutting into squares and serving.

Recipe Video