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Browned Butter Chewy Monster Cookies

These Browned Butter Chewy Monster Cookies take classic monster cookies to the next level with rich, nutty browned butter for a deeper, caramelized flavor. Packed with peanut butter, oats, melty chocolate chips, and colorful M&M’s, these cookies are perfectly soft, chewy, and loaded with mix-ins in every bite.
Servings 15 cookies

Equipment

  • Saucepan
  • Large Mixing Bowl
  • Parchment Paper
  • Whisk
  • Spatula
  • Baking Sheets

Ingredients

  • ½ cup unsalted butter browned
  • ¼ cup peanut butter
  • ½ cup brown sugar
  • ¼ cup granulated sugar
  • 1 egg room temperature
  • 1 teaspoon pure vanilla extract
  • ½ cup flour
  • ½ teaspoon salt
  • 1 teaspoon baking soda
  • 1 ¼ cup oats
  • ½ cup semi sweet chocolate chips
  • ½ cup m & m’s

Instructions

  • Melt the butter in a saucepan over medium heat, stirring occasionally. Once melted, the butter will begin to bubble and foam. Stir continuously to prevent burning. After a few minutes, the butter will turn golden, and brown specks will form at the bottoms. You’ll start to notice a rich, nutty aroma.
  • Remove from heat as soon as butter reaches a deep golden brown color. Pour the browned butter (including the flavorful brown bits) into a heatproof bowl and let it cool slightly before mixing the rest of ingredients.
  • In a large mixing bowl, combine the cooled browned butter and peanut butter with brown sugar and white sugar. Use a whisk or spatula to mix until fully combined. Add egg and vanilla, mix well.
  • Add flour, salt, and baking soda and mix until just combined. Fold in oats, m & m’s, and chocolate chips. Don’t over mix.
  • Roll cookie dough into balls and allow them to cool in the fridge.
  • When ready to bake, preheat your oven to 325°F. Line the baking sheet with parchment paper.
  • Bake cookies for 14-16 minutes, or until the edges are golden. The cookies will continue to set as they cool.
  • Allow the cookies to cool on the baking sheet for 5 minutes before transferring them off to cool completely. Serve warm with a cold glass of milk!

Notes

1. If your butter turns black instead of brown, it has burned—start over with fresh butter.
2. For extra flavor, add a pinch of salt to enhance the nuttiness.
3. Browned butter can be stored in an airtight container in the fridge for later use!