1-First Step: Preheat your oven to 350°F (175°C). Line a cupcake tray with paper liners or lightly grease it. Gather and measure all ingredients, including the basic cake mix and items for the sugar cookies, ensuring any substitutions are ready.

2-Second Step: Prepare the cake mix as directed on the package, then in a separate bowl, cream the unsalted butter and granulated sugar until light and fluffy for the sugar cookies. If making vegan or low-calorie versions, use the right substitutes here.

3-Third Step: Add eggs one at a time to the cookie mixture, mixing well after each. For vegan options, use flax eggs as a replacement.

4-Fourth Step: In another bowl, combine all-purpose flour, baking powder, and ground cinnamon. Mix this into the wet ingredients for the cookies gradually, then blend with the prepared cake mix batter to create the cupcake base.

5-Fifth Step: Stir in vanilla extract and any extras like nuts. For the cupcakes, pour the batter into the cups, and set aside portions for the sugar cookies if baking separately.

6-Sixth Step: Spoon the cupcake batter evenly into the cups, filling each about two-thirds full. For sugar cookies, roll out dough and cut shapes to top the cupcakes later.

7-Seventh Step: Bake the cupcakes in the preheated oven for 18-22 minutes and the sugar cookies separately as needed. Check with a toothpick for doneness.

8-Final Step: Cool the cupcakes and cookies, then apply frosting to hold the cookies on top. Add frosty snow-themed decorations for the finishing touch. Enjoy this combined treat fresh from your kitchen.