Little Debbie Christmas Tree Sheet Cake Recipe

I turned my favorite Little Debbie Christmas Tree Treats into a festive sheet cake stacked with fluffy whipped cream, white chocolate buttercream, and a confetti of sprinkles. It’s playful, nostalgic, and ready to steal the dessert table.

I’m fully obsessed with this Little Debbie Christmas Tree Sheet Cake because it tastes like ripping open that crinkly holiday wrapper, but bigger, softer, and way more satisfying. I love the fluffy yellow cake, the thick whipped cream filling, and that sweet white chocolate buttercream that makes every bite feel like the best part of the snack cake aisle.

And the festive sprinkles? Absolutely required.

I wanted all the nostalgia, but in a slice you can actually sink a fork into. But fair warning, I do not cut tiny pieces of this cake.

Not happening. I want the full tree-cake moment.

Ingredients

• All-purpose flour gives the cake that soft, sturdy snack-cake bite.
• Granulated sugar makes it sweet and keeps the crumb tender.
• Baking powder helps it puff up instead of baking flat.
• Fine salt keeps all that sweetness from tasting one-note.
• Soft butter brings richness and that classic homemade cake flavor.
• Eggs add structure, moisture, and a little extra richness.
• Whole milk keeps the cake soft, not dry or crumbly.
• Vanilla extract makes everything taste warmer and more bakery-style.
• Cold whipped cream filling gives it that fluffy, creamy middle.
• Powdered sugar sweetens the filling without making it gritty.
• Gelatin helps the filling hold up, especially for clean slices.
• White chocolate makes the buttercream sweet, creamy, and very Little Debbie-ish.
• Plus, sprinkles bring the holiday color and that fun grocery-store nostalgia.

Ingredient Quantities

• 2 1/2 cups (312 g) all purpose flour
• 2 cups (400 g) granulated sugar
• 2 1/2 teaspoons baking powder
• 1/2 teaspoon fine salt
• 1 cup (227 g) unsalted butter, softened
• 4 large eggs, room temperature
• 1 cup (240 ml) whole milk, room temperature
• 2 teaspoons vanilla extract
• 2 cups (480 ml) heavy whipping cream, cold (for filling)
• 1/3 cup (40 g) powdered sugar (for filling)
• 1 teaspoon vanilla extract (for filling)
• 1 teaspoon unflavored gelatin (optional, for stabilized filling)
• 8 ounces (225 g) white chocolate chips or chopped white chocolate (for buttercream)
• 1 cup (227 g) unsalted butter, softened (for buttercream)
• 2 to 3 cups (240 to 360 g) powdered sugar, sifted (for buttercream)
• 2 to 4 tablespoons heavy cream or milk (for buttercream)
• Pinch of fine salt (for buttercream)
• 1 teaspoon vanilla extract (for buttercream)
• 2 to 3 tablespoons festive sprinkles, green and red tree style

How to Make this

1. Preheat oven to 350 F and grease and line a 9 by 13 inch sheet pan with parchment, leaving an overhang for easy removal.

2. Whisk together 2 1/2 cups all purpose flour, 2 cups granulated sugar, 2 1/2 teaspoons baking powder, and 1/2 teaspoon fine salt in a bowl.

3. In a stand mixer or large bowl, cream 1 cup softened unsalted butter until light, then add 4 large eggs one at a time, scraping the bowl between additions; mix in 2 teaspoons vanilla extract.

4. With mixer on low, add the dry ingredients in three additions alternately with 1 cup whole milk, beginning and ending with the dry ingredients, mixing just until combined; scrape down sides as needed.

5. Pour batter into prepared pan, smooth the top, and bake 25 to 35 minutes or until a toothpick inserted in the center comes out clean; cool completely in the pan on a rack.

6. For the filling, if using stabilized filling sprinkle 1 teaspoon unflavored gelatin over 1 tablespoon cold water and let bloom; heat briefly to dissolve. Whip 2 cups cold heavy whipping cream with 1/3 cup powdered sugar and 1 teaspoon vanilla extract to medium stiff peaks, then fold in the dissolved gelatin if using. Chill until slightly firm.

7. Once cake is cool, use a long serrated knife to slice the cake horizontally into two even layers; spread the whipped cream filling evenly over the bottom layer, then place the top layer back on and press gently; chill for 15 to 30 minutes to set.

8. For the white chocolate buttercream, melt 8 ounces white chocolate chips or chopped white chocolate gently and let cool to warm. In a mixer beat 1 cup softened unsalted butter until creamy, add 2 to 3 cups sifted powdered sugar gradually, then beat in the melted white chocolate, 1 teaspoon vanilla extract, a pinch of fine salt, and 2 to 4 tablespoons heavy cream or milk until smooth and spreadable.

9. Frost the chilled sheet cake evenly with the white chocolate buttercream, smooth the top, then scatter 2 to 3 tablespoons festive green and red tree style sprinkles over the cake.

10. Chill the finished cake for at least 30 minutes to set the frosting, slice into squares and serve. Store covered in the refrigerator for up to 3 days.

Equipment Needed

1. 9 by 13 inch sheet pan lined with parchment paper and greased
2. Stand mixer or electric hand mixer with paddle and whisk attachments
3. Large mixing bowls (at least two)
4. Measuring cups and spoons and a kitchen scale for accuracy
5. Whisk and rubber spatula for folding and scraping
6. Long serrated knife for horizontal slicing
7. Cooling rack to cool the cake in the pan
8. Microwave safe bowl or small saucepan for gently melting white chocolate
9. Offset spatula or bench scraper for smoothing the frosting

FAQ

Little Debbie Christmas Tree Sheet Cake Recipe Substitutions and Variations

• All purpose flour: substitute with cake flour (use 2 cups plus 2 tablespoons cake flour for every 2 1/2 cups AP; yields lighter crumb) or 1-to-1 gluten free flour blend (ensure it contains xanthan gum or add 1/2 teaspoon per cup).
• Granulated sugar: swap for light brown sugar (adds moisture and subtle caramel flavor, use 1:1) or coconut sugar (use 1:1; flavor is more caramel like and color will be darker).
• Unsalted butter: replace with vegan stick butter or plant based margarine (use 1:1; for best structure choose a solid baking stick) or refined coconut oil (use 3/4 cup coconut oil for 1 cup butter; slightly denser crumb and faint coconut note).
• Heavy whipping cream (for filling): use chilled full fat coconut cream (chill can overnight, scoop solids, whip as cream) or stabilized whipped cream made with 1 cup cream + 1 teaspoon unflavored gelatin or 2 tablespoons instant pudding mix for extra hold.

Pro Tips

1. Let everything reach the correct temperature, especially the eggs, milk and butter. Room temperature ingredients blend more smoothly so the batter traps air evenly and bakes up lighter.

2. Chill the cake briefly before slicing and again after filling. A cold cake slices cleaner and the whipped filling will hold its shape better, which makes assembly and frosting much easier.

3. When melting white chocolate, do it gently and stop while it is still slightly warm, not hot. If it is too hot it can break the buttercream or seize; if it cools too much it will thicken and be hard to incorporate. Stir constantly and test the temperature by touch.

4. If you want sturdier whipped cream filling, bloom the gelatin in cold water and fold it in when the whipped cream is at medium peaks. It keeps the filling from weeping and lets you slice the cake neatly without deflating the cream.