1-First Step: Preheat and Prep Preheat your oven to 350°F. Line baking sheets with parchment paper. Soften 1/2 cup unsalted butter. This mise en place keeps things smooth for tree shaped cookies.

2-Second Step: Mix the Dough In a bowl, beat butter, 1 large egg, and 1 tsp vanilla extract until creamy. Stir in the full box of white cake mix until a soft dough forms. Add 5-8 drops green gel food coloring for that festive tint. Knead gently; dough should be pliable like drop cookie batter. For vegan, use plant-based subs here.

3-Third Step: Shape the Trees Scoop 1-tablespoon portions and roll into balls. No cookie cutter? Flatten each into a triangle: wide 1.5-inch base tapering to 0.5-inch top. Pinch subtle ridges for branches. Place 2 inches apart on sheets. These hold shape well, puffing slightly in the oven for realistic mini christmas cakes.

4-Fourth Step: Bake to Perfection Bake 8-10 minutes until edges set but centers stay soft. Avoid overbaking for cake-like texture. Cool on sheets 5 minutes, then transfer to racks. Yields 24 holiday cookies ready for decorating.

5-Fifth Step: Decorate Festively Tint 2 cups buttercream or royal icing green. Use a piping bag with #3 tip to pipe three widening horizontal layers: thin at top, broader base. Add yellow star sprinkle atop. Dot 5-7 mini M&Ms or colorful sprinkles as ornaments. Pipe zigzag garlands if desired. Dust powdered sugar for snow. Chill 10 minutes to set. Gluten-free? Use compatible icing.

6-Final Step: Serve and Share Let cookies firm up. Arrange on platters for potlucks or pack in tins for picnics. They pair great with hot cocoa at gatherings. For low-cal, skip heavy icing layers.