1-Step 1: Prep Your Workspace Line two baking sheets with parchment paper. This prevents sticking and ensures even baking for your holiday cookies. Soften butter at room temperature for 30 minutes if needed. Crush peppermint candies in a zip-top bag with a rolling pin for uniform pieces.

2-Step 2: Cream Butter and Sugar In a large bowl, beat 1 cup softened unsalted butter and 1 cup granulated sugar with a mixer on medium for 2-3 minutes until light and fluffy. This step aerates the dough for tender peppermint cookies. Scrape sides often.

3-Step 3: Add Wet Ingredients Beat in 1 large egg and 2 tsp vanilla extract until combined. For extra mint, add 1/2 tsp peppermint extract here. If using red food coloring, swirl in a few drops for marbled effect. Vegan adapt: mix flax egg first.

4-Step 4: Mix Dry Ingredients Whisk together 2 1/4 cups all-purpose flour, 1/2 tsp baking powder, and 1/4 tsp salt in a separate bowl. Gradually add to wet mixture on low speed until a soft dough forms. Do not overmix to keep cookies chewy. GF swap works perfectly here.

5-Step 5: Shape and Bake Scoop 1-tablespoon dough balls onto sheets, spacing 2 inches apart. Flatten slightly with palm. Bake 10-12 minutes until edges turn golden. Centers stay soft. Cool on sheet 5 minutes, then transfer to rack. Low-cal tip: smaller scoops reduce portions.

6-Step 6: Add Chocolate Topping Melt 1 cup white chocolate chips and 1/2 cup dark chocolate chips separately in microwave-safe bowls. Heat 30-second bursts, stirring until smooth. Drizzle white over half of each cookie, dark over the other for bark look. Sprinkle crushed peppermint immediately.

7-Step 7: Chill and Serve Chill cookies 10 minutes in fridge to set chocolate. Enjoy warm or cooled. Pair with mint chocolate chip ice cream for a cool treat.