These are the perfect, adorably grumpy, and chewy Christmas cookies. This small-batch recipe uses a secret (an egg yolk!) to guarantee a rich, chewy texture. Finished with a tiny red heart, they're the star of any holiday platter.
Preheat your oven to 350°F (175°C). Line a large baking sheet with parchment paper.
In a medium bowl, use an electric mixer to cream together the softened butter, brown sugar, and granulated sugar until light and fluffy (about 2 minutes).
Add the egg yolk, vanilla extract, peppermint extract, and green gel food coloring. Beat on low speed until just combined.
In a separate small bowl, whisk together the flour, baking soda, and salt.
Add the dry ingredients to the wet ingredients and mix on low speed (or by hand with a spatula) until just a few streaks of flour remain.
Gently fold in the white chocolate chips.
Drop rounded tablespoons (or use a #40 cookie scoop) of dough onto the prepared baking sheet, spacing them 2 inches apart.
Bake for 9-11 minutes. The edges will be set, but the centers will look soft and slightly underdone.
Remove the baking sheet from the oven. **Immediately** press one red heart sprinkle into the center of each hot cookie.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
Notes
The Egg Yolk is Key: Do not use a full egg. The yolk provides richness and chewiness. The extra water in an egg white will make the cookies spread and turn cakey.
Food Coloring: Use gel food coloring for a vibrant green without adding extra liquid.
The Heart: Press the heart sprinkle on *after* baking. If you bake it, it will melt.
Don't Overbake: Pull the cookies when the centers are still soft. They will set up on the hot pan and stay perfectly chewy.
Keyword Christmas cookies, Grinch cookies, mint white chocolate cookies