1-First Step: Mise en Place Gather all ingredients at room temperature for smooth mixing. Soften the butter by leaving it out for 1 hour or microwaving in 10-second bursts. Measure the powdered sugar, flour, and cornstarch precisely to ensure the signature meltaway texture. Prep a baking sheet with parchment paper and preheat your oven to 350°F. This setup takes about 10 minutes and sets you up for success.

2-Second Step: Cream the Base In a large bowl, beat the 1 cup softened butter and 1/2 cup powdered sugar together for 2 minutes until light and fluffy. Use a hand mixer on medium speed for best results. This incorporates air for tenderness. Scrape down the sides to catch every bit.

3-Third Step: Add Wet Ingredients Mix in 1/4 cup egg nog, 1 tsp rum extract (or rum), 1/2 tsp nutmeg, and 1 tsp vanilla. Beat on low until combined, about 1 minute. The mixture will look creamy and aromatic, filling your kitchen with holiday scents. Use room-temperature egg nog to prevent curdling.

4-Fourth Step: Incorporate Dry Ingredients Gently fold in 2 cups flour and 1/4 cup cornstarch with a spatula or on low mixer speed. Stir just until a soft dough forms, no more than 1-2 minutes. Overmixing toughens the cookies. The dough will be sticky but hold together.

5-Fifth Step: Chill the Dough Cover the bowl and refrigerate for 30 minutes. This firms up the dough for easy handling and prevents spreading during baking. Quick chill beats overnight waits for busy schedules.

6-Sixth Step: Shape and Bake Scoop 1-inch balls (about 1 tablespoon each) and roll smoothly. Place 2 inches apart on the prepared sheet. Bake at 350°F for 12-15 minutes until edges firm but centers soft. They won’t brown much. Cool on the sheet for 5 minutes, then transfer to a wire rack.

7-Final Step: Finishing Touches Once completely cool (about 30 minutes), roll each cookie in extra powdered sugar for that snowy look. Double-dip for extra coating. Yields 24 holiday cookies ready for platters or gifting. Store as detailed later.