1-First Step: Preheat your oven to 350°F (175°C) and prepare your cupcake liners in a cupcake tray.

2-Second Step: In a mixing bowl, combine the dry ingredients: flour, baking powder, cinnamon, and salt, blending them thoroughly.

3-Third Step: In another bowl, cream the unsalted butter and sugar until light and fluffy, then add the egg or vegan substitute, mixing well.

4-Fourth Step: Gradually add the dry ingredients into the wet mixture, stirring until just combined to create a smooth batter.

5-Fifth Step: Spoon the batter evenly into the cupcake liners, filling each about two-thirds full.

6-Sixth Step: Bake in the preheated oven for 18-22 minutes or until a toothpick inserted in the center comes out clean.

7-Final Step: Let the Cookies Cupcakes Christmas cool on a wire rack before serving. For dietary adaptations, use appropriate ingredient substitutions during preparation.