Ingredients:

  • 1 cup (225g) unsalted butter, cool-room temperature
  • 1 cup (200g) brown sugar, packed
  • 1/2 cup (100g) granulated sugar
  • 1 cup (250g) creamy peanut butter
  • 2 large eggs
  • 1 tsp (5ml) vanilla extract
  • 2 1/2 cups (315g) all-purpose flour
  • 1 tsp (5g) baking soda
  • 1/2 tsp (3g) salt
  • 3 cups (270g) old-fashioned rolled oats
  • 1 cup (170g) semi-sweet chocolate chips
  • 1 cup (200g) red, white, and blue M&M’s

Instructions:

  1. Beat the butter, brown sugar, and granulated sugar on medium-high until the mixture is pale and fluffy.
  2. Stir in the peanut butter until completely smooth.
  3. Add eggs one at a time, followed by the vanilla, ensuring each is fully incorporated before adding the next.
  4. In a separate small bowl, whisk together the flour, baking soda, and salt.
  5. Turn the mixer to the lowest setting and slowly add the flour mixture. Stop mixing the moment no white streaks remain.
  6. Using a spatula, gently fold in the rolled oats, chocolate chips, and red, white, and blue M&M’s until evenly distributed.
  7. Scoop dough onto parchment-lined baking sheets and bake for 10 minutes at 350°F (175°C).
  8. Allow cookies to cool on the baking sheet for several minutes before transferring to a wire rack.