Easy Monster Cookies Recipe
Thick, chewy monster cookies recipe packed with peanut butter, oats, chocolate chips, and colorful M&Ms! These oversized treats are crispy on the edges, soft in the middle, and ready in just 30 minutes.
Print Pin Servings: 24 large cookies
Calories: 375kcal
Cost: $13
Equipment
- Large mixing bowl
- Electric mixer (stand mixer preferred, but hand mixer works too)
- Measuring cups and spoons
- Cookie sheets
- Parchment paper or silicone baking mats
- Cookie scoop (3-tablespoon size recommended)
- Cooling rack
Ingredients
Wet Ingredients
- 3 large eggs room temperature
- 1¼ cups light brown sugar packed
- 1 cup granulated sugar
- 1 tablespoon vanilla extract
- 2 cups creamy peanut butter
- ½ cup unsalted butter softened
Dry Ingredients
- 4½ cups old-fashioned rolled oats
- 1 cup all-purpose flour
- 2 teaspoons baking soda
- ½ teaspoon salt
Mix-ins
- 1 cup semi-sweet chocolate chips
- 1 cup M&Ms;
- ½ cup mini M&Ms; for topping
Instructions
- Preheat oven to 350°F (175°C). Line baking sheets with parchment paper.
- Beat eggs, brown sugar, and white sugar until well combined (2 mins).
- Add vanilla, peanut butter, and butter. Mix until creamy.
- Whisk together oats, flour, baking soda, and salt.
- Gradually mix dry ingredients into wet mixture.
- Fold in chocolate chips and regular M&Ms.
- Scoop 3-tablespoon portions onto baking sheets.
- Top with mini M&Ms.
- Bake 12-14 minutes until edges are lightly golden.
- Cool 5 minutes on sheet, then transfer to rack.
Notes
- Don't overbake - centers should look slightly underdone
- Use room temperature ingredients
- Chill dough if too soft
- Store in airtight container up to 5 days
- Freezer-friendly up to 3 months
Nutrition
Calories: 375kcal | Carbohydrates: 46g | Protein: 9g | Fat: 19g | Saturated Fat: 7g | Trans Fat: -1g | Cholesterol: 31mg | Sodium: 235mg | Fiber: 2.5g | Sugar: 32g