Preparation Steps

• Preheat your oven to 375°F (190°C). Line baking sheets with parchment paper.
• In a large bowl, cream together the softened butter and peanut butter until smooth. Add the granulated sugar and brown sugar and beat until light and fluffy.
• Beat in the egg and vanilla extract until well combined.
• In a separate medium bowl, whisk together the flour, baking soda, and salt.
• Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
• Gently stir in the M&M's candies.
• Drop rounded tablespoons of dough onto the prepared baking sheets, about 2 inches apart.
• Bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft. They will firm up as they cool.
• Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.