Ingredients
Equipment
Method
- Step 1: Line a small baking sheet with parchment paper and set aside.
- Step 2: In a large mixing bowl, beat together the unsalted butter, brown sugar, and granulated sugar until smooth and fluffy, about 2–3 minutes using a hand mixer or stand mixer.
- Step 3: Beat in the egg and vanilla extract until fully combined.
- Step 4: In a separate bowl, whisk together the all-purpose flour, cornstarch, baking soda, and salt.
- Step 5: Gradually add the dry ingredients to the wet ingredients, mixing gently just until combined.
- Step 6: Fold in the chocolate chips and M&Ms using a spatula.
- Step 7: Using a cookie scoop or tablespoon, portion out about 2 tablespoons of dough and roll into balls. Place them on the prepared baking sheet. Press a few extra M&Ms on top of each dough ball for extra color, if desired.
- Step 8: Cover the dough balls with plastic wrap and freeze for at least 1 hour or overnight. If frozen overnight, let dough sit at room temperature for about 10 minutes before baking.
- Step 9: Preheat oven to 350°F (175°C). Bake frozen dough balls on the parchment-lined baking sheet for 10 to 12 minutes. Cookies might look slightly underbaked when removed.
- Step 10: Let cookies cool on the baking sheet for several minutes, then transfer to a wire rack to cool completely.
Notes
Swap unsalted butter with coconut oil or plant-based butter for dairy-free options. Use coconut sugar for deeper flavor or all brown sugar for chewier cookies. Try different chocolate chips or nuts for variety. Freeze dough up to one week before baking. Store baked cookies in an airtight container at room temperature for up to one week or freeze for up to 3 months.
