Step 1: Make the Donuts (Skip if Using Store-Bought)

1. Combine Dry Ingredients: In a large mixing bowl, whisk together flour, sugar, baking powder, and salt.
2. Mix Wet Ingredients: In a separate bowl, whisk together milk, melted butter, egg, and vanilla extract.
3. Combine Wet and Dry Ingredients: Pour the wet ingredients into the dry ingredients and mix until just combined. Be careful not to overmix, as this can make the donuts dense.
4. Bake or Fry the Donuts: If you have a donut pan, spoon the batter into the pan and bake at 350°F (175°C) for 10-12 minutes. If frying, heat oil in a deep pan to 350°F and fry donuts until golden brown, about 2-3 minutes on each side. Drain on paper towels.
5. Cool and Glaze: Let the donuts cool completely. If desired, dip them in a glaze made from powdered sugar and milk, or leave them plain if you plan to dust with powdered sugar later.

Step 2: Prepare the Tree Base

1. Choose a Sturdy Base: Place a cake stand or a large, sturdy platter where you’ll build the tree. Ensure the surface is stable since the tree will be heavy once assembled.
2. Set Up a Cone Structure (Optional): For extra stability, use a cone-shaped Styrofoam piece as the base of your tree. Wrap it in plastic wrap to keep it food-safe. You can also skip this step and build the tree freehand.

Step 3: Build the Donut Tree

1. Start with the Largest Donuts at the Bottom: Arrange a layer of donuts in a circular shape on the base. This will be the foundation of your tree.
2. Stack Donuts in a Pyramid Shape: Layer donuts in progressively smaller circles to form a pyramid. Secure each layer by carefully stacking the donuts slightly closer together as you move upwards.
3. Fill Gaps with Donut Holes: Use donut holes to fill in any spaces between the larger donuts. This will help create a fuller look and add stability to the structure.
4. Stabilize Each Layer: If needed, use toothpicks to secure the donuts in place, especially for the higher layers where stability may be an issue.

Step 4: Decorate the Donut Tree

1. Dust with Powdered Sugar: Generously dust the entire donut tree with powdered sugar to create a snowy effect.
2. Add Holiday Sprinkles: Scatter red, green, and white holiday sprinkles over the donuts for a festive touch.
3. Place Mini Ornaments: Carefully place mini ornaments or edible glitter on the tree for added holiday flair. Ensure any decorations are food-safe.
4. Top with a Star: Add an edible star or other holiday-themed topper to the very top of the tree for a finishing touch.
5. Optional Greenery: Add pretzels, rosemary sprigs, or edible greenery between layers to resemble branches.

Step 5: Serve

1. Present Your Tree: Place your Christmas Donut Tree on the dessert table as the holiday centerpiece.
2. Serve with Tongs or Skewers: For easy serving, provide small tongs or skewers for guests to grab donuts and donut holes from the tree.
3. Enjoy! This delicious and festive dessert is ready to impress and delight guests of all ages.