By taffeybakery.com
Monster Cookie Bars
8 steps
Prep:10minCook:18min
Monster cookie bars are chewy thick bars! They're loaded with peanut butter, m&m's, rolled oats, and chocolate chips! They taste like one soft oatmeal peanut butter cookie and come together in 30 minutes for an easy dessert that's perfect for any occasion.
Updated at: Sun, 08 Dec 2024 21:18:13 GMT
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Ingredients
9 servings
Instructions
Step 1
Preheat the oven to 350°F/180°C. Line a square 8x8 baking pan with parchment paper and set aside.
Step 2
In a large mixing bowl, cream butter, peanut butter, and both brown sugars until light and fluffy.
Step 3
Add in the egg, egg yolk, and vanilla and continue whisking.
Step 4
Add in the flour, baking powder, rolled oats, and salt. Fold until a soft dough forms. Do not overmix!
Step 5
Toss in the chocolate chips and mini M&M's and mix until just combined.
Step 6
Transfer into the prepared baking pan and press down firmly and evenly.
Step 7
Bake for 20-21 minutes or until the edges are a light golden brown. The middle will look soft, but will continue to bake as it cools
Step 8
Add more chocolate chips, M&M's, and some halloween decor if desired. Slice and enjoy!
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