Description
These Christmas Monster Cookies are chewy, rich, and loaded with chocolatey goodness! Bursting with oats, peanut butter, and festive red and green M&Ms, they’re the perfect treat for cookie exchanges, Santa’s cookie plate, or cozy December baking days. Each bite delivers a balance of sweet, salty, and crunchy—making them a family favorite that’s just as fun to make as it is to eat!
Ingredients
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½ cup unsalted butter, softened
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1 cup creamy peanut butter
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¾ cup brown sugar, packed
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½ cup granulated sugar
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2 large eggs
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1 tsp vanilla extract
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1 tsp baking soda
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¼ tsp salt
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1 ½ cups old-fashioned oats
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1 cup all-purpose flour
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¾ cup chocolate chips
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1 cup red and green M&Ms
Instructions
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Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
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In a large bowl, cream together butter, peanut butter, and both sugars until fluffy.
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Add eggs and vanilla; mix until well combined.
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Stir in baking soda, salt, oats, and flour until just incorporated.
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Fold in chocolate chips and M&Ms.
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Scoop dough into 1 ½-inch balls and place 2 inches apart on baking sheets.
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Bake for 9–11 minutes or until edges are lightly golden.
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Cool on the baking sheet for 5 minutes before transferring to a wire rack.
Notes
For extra festive flair, press additional M&Ms on top before baking.
Use gluten-free oats for a GF version.
Store in an airtight container for up to 1 week or freeze for up to 3 months.