Soft, chewy chocolate chip cookies with red and green M&M's baked in and pressed on top. Bake them from scratch, or layer the dry ingredients into a quart jar as a gift mix.
Heat the oven to 350°F. Line a baking sheet with parchment paper.
If you aren't using a jar, whisk the flour, baking soda, and salt together in a medium bowl, then add the brown sugar, granulated sugar, chocolate chips, and M&M's.
In a large bowl, stir the butter, egg, and vanilla together with a wooden spoon until combined. It may look lumpy, and that's fine.
Pick out a small handful of M&M's for the tops. Add the rest of the dry ingredients (or the entire jar) and stir, then work the dough with your hands until a squeezed handful holds together.
Scoop the dough by rounded tablespoons, roll into balls, and set them 3 inches apart on the baking sheet. Press a few of the saved M&M's onto each one. There's no need to flatten them.
Bake 11 to 12 minutes, until the edges are set and lightly golden. The centers will still look soft.
Cool 5 minutes on the pan, then move the cookies to a wire rack to cool completely. Repeat with the remaining dough.
Notes
To make the jar mix: In a 1 quart wide-mouth jar, whisk the flour, baking soda, and salt together with a fork and pack it down well. Layer the brown sugar, granulated sugar, chocolate chips, and M&M's, packing each layer firmly. Top off any space with extra M&M's so the jar is full to the brim. Keeps about 3 months in a cool, dark pantry. Contains wheat, milk, and soy; check the M&M's bag for a peanut warning.To bake from the jar: Follow the same steps, stirring in the entire jar in place of the bowl of dry ingredients.For bright M&M's: A few M&M's may crack in the oven. Press fresh ones into the tops right after baking, while the cookies are still soft.To freeze the dough: Freeze the topped dough balls on a pan until solid, then bag them for up to 3 months. Bake from frozen at 350°F for 12 to 14 minutes.Storage: Store cooled cookies in an airtight container at room temperature for up to 4 days, or freeze for up to 3 months.Reheating: Warm a cookie in the microwave for about 10 seconds for a just-baked feel.Swaps: Milk chocolate chips work in place of semi-sweet. Use any color of M&M's to match a different holiday.