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These Monster Cookie Bars combine all your favorite cookies into one! Chock full of oatmeal, M&Ms, white chocolate chips and pretzels, they perfect combination of salty and sweet! Plus, they are made in one bowl!
Ingredients Needed For Monster Cookie Bars
- salted butter
- light brown sugar
- large eggs
- vanilla extract
- all-purpose flour
- oatmeal
- M&Ms
- pretzels
- white chocolate chips
Kitchen Tools Used In This Recipe
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Buy Now → How To Make Monster Cookie Bars
Preheat oven to 350 degrees and lightly grease a 9 x 13 baking dish, set aside. My favorite bakeware for blondies is a glass baking dish. For this recipe, you really only need one large microwave safe bowl. In the microwave, melt the butter in the bowl or use a measuring cup or other small bowl. It does not need to be completely melted and boiling, just really soft. Then add the brown sugar and blend together with a hand mixer.
Now add in the eggs and vanilla, beating well. Then mix in the flour. By hand, stir in the white chocolate chips, broken pretzel pieces, M&Ms and oatmeal.
Spread into a lightly greased 9 x 13 dish. The mixture will be thick, you may need to spread with a knife. Bake for 23 – 25 minutes at 350 degrees, they will look a light soft and that’s ok. Cool slightly, for about 5 – 10 minutes, before cutting. Refrigerate or freeze in an airtight container.
Hope you enjoy!!
More Favorite Cookie Bar Recipes (Click the Links Below)
- Dark Chocolate Cranberry Bars
- Blueberry Cookie Bars
- M&M Sugar Cookie Bars
- Snickerdoodle Bars
- Cinnamon Oatmeal Bars
- Ooey Gooey Pumpkin Bars
- Chocolate Chunk Bars
Monster Cookie Bars
- Total Time: 33 mins
- Yield: 24 servings 1x
Ingredients
- 1 cup salted butter, melted
- 2 cups light brown sugar
- 2 large eggs
- 2 tsp vanilla extract
- 2 cups all-purpose flour
- 1 cup oatmeal
- 10 oz M&Ms
- 1 cup pretzels, broken into pieces
- 1 cup white chocolate chips
Instructions
- Preheat oven to 350 degrees and lightly grease a 9 x 13 baking dish.
- In a large microwavable bowl, melt butter.
- Using a hand mixer, blend in light brown sugar.
- Mix in eggs and vanilla.
- Mix in Flour.
- By hand, stir in the oatmeal, M&Ms, broken pretzels, and white chocolate chips.
- Spread the batter into lightly greased baking dish.
- Bake for 23 – 25 minutes until the edges for lightly browned.
- Let cool before cutting.
- Enjoy!
- Prep Time: 10 mins
- Cook Time: 23 mins
- Category: Dessert, Cookies
- Method: Baking