Viral Christmas Tree Brownies: Fudgy Brownies Turned Into Adorable Edible Trees

Viral Christmas Tree Brownies: Fudgy Brownies Turned Into Adorable Edible Trees

Every December, one recipe always steals the show on Pinterest and TikTok: brownies baked in a big pan, sliced into triangles, and decorated like miniature Christmas trees. These Viral Christmas Tree Brownies are exactly that festive showstopper — a pan of rich, fudgy chocolate brownies cut into tree shapes, given little pretzel stick trunks, and piped with swirls of green buttercream and colorful sprinkles.

They look like they took hours to make, but the whole project is surprisingly simple. If you can bake a pan of brownies and pipe a zigzag, you can make these. Kids love helping with the decorating, and they are sturdy enough to stand up on a dessert table, making them the perfect centerpiece for a holiday party, cookie exchange, or Christmas Eve dessert spread.

The secret to brownie trees that actually look like trees is a pan baked a little thicker than usual, a clean chilling step before cutting, and a sharp knife wiped between cuts. Follow the steps below and you will end up with crisp triangle slices that hold their shape under the frosting.

Why You'll Love These Christmas Tree Brownies

• One pan, zero special molds — just bake, chill, and slice into triangles.
• Rich, fudgy chocolate base that tastes as good as it looks.
• A decorating project the whole family can join, from frosting to sprinkles.
• They stand upright on pretzel trunks, so they double as edible table décor.
• Make-ahead friendly — bake the brownies a day early and decorate before serving.

Ingredients

For the fudgy brownies:

• 1 cup (225 g) unsalted butter
• 8 oz (225 g) semisweet chocolate, chopped
• 1 1/2 cups (300 g) granulated sugar
• 4 large eggs, at room temperature
• 2 teaspoons vanilla extract
• 1 cup (125 g) all-purpose flour
• 1/4 cup (25 g) unsweetened cocoa powder
• 1/2 teaspoon fine sea salt
• 1/2 teaspoon espresso powder (optional, deepens the chocolate flavor)

For decorating:

• 1 1/2 cups (340 g) unsalted butter, softened
• 4 cups (480 g) powdered sugar
• 2–3 tablespoons whole milk
• 1 teaspoon vanilla extract
• Green gel food coloring
• 12 pretzel sticks or mini pretzel rods (the "trunks")
• Holiday sprinkles, nonpareils, or mini candy pearls
• Powdered sugar, for dusting "snow"

Instructions

1. Bake the brownie slab. Heat the oven to 350°F (175°C). Line a 9×13-inch pan with parchment, leaving an overhang for lifting. Melt the butter and chopped chocolate together in a heatproof bowl over simmering water (or in short microwave bursts), stirring until smooth. Let cool 5 minutes.
2. Mix the batter. Whisk the sugar, eggs, and vanilla into the chocolate mixture until glossy and slightly thickened. Sift in the flour, cocoa powder, salt, and espresso powder if using; fold just until no dry streaks remain. Do not overmix.
3. Bake until just set. Spread the batter evenly in the prepared pan and bake 28–32 minutes, until the edges are firm and a toothpick inserted in the center comes out with moist crumbs (not wet batter). Cool completely in the pan, then refrigerate for at least 1 hour — a chilled slab cuts cleanly.
4. Cut the triangles. Lift the brownie out using the parchment. Trim the very edges straight for clean cuts. Cut the slab lengthwise into 4 long rows, then cut each row into triangles by alternating diagonal cuts (about 12–16 trees total). Wipe the knife clean between cuts for sharp edges.
5. Add the trunks. Gently push one end of a pretzel stick about 1 inch into the wide base of each triangle. Stand them upright on a serving board or platter.
6. Make the green frosting. Beat the softened butter until creamy, then beat in the powdered sugar, milk, and vanilla until fluffy. Tint with green gel coloring a little at a time until you reach a festive tree green. Transfer to a piping bag fitted with a star or round tip.
7. Decorate. Pipe a zigzag of green frosting up each brownie triangle, then immediately press on sprinkles and candy pearls so they stick. Finish with a light dusting of powdered sugar over everything for a snowy look.
8. Serve. Let the frosting set for 15–20 minutes, then serve. The trees can be displayed upright on the board for up to a few hours at cool room temperature.

Tips for Picture-Perfect Brownie Trees

Chill before cutting: this is the single most important step. Warm brownies crumble; a well-chilled slab gives you crisp triangle edges that look like real mini trees.

Pick the right pretzels: thick pretzel rods or sturdy pretzel sticks make the best trunks — thin sticks can bend under the brownie's weight.

Pipe on a board: decorate the trees directly on your serving board so you don't have to move them after frosting.

Sprinkle while wet: add sprinkles immediately after piping each tree, because buttercream starts to crust within minutes.

Star toppers: press a tiny star-shaped sprinkle or a small candy star at the top of each tree for an extra-cute finish.

Make-Ahead & Storage

The brownie slab can be baked, cooled, and wrapped tightly up to 2 days ahead — refrigerate and cut triangles when ready to decorate. Frosted trees keep well in a single layer in an airtight container at room temperature for up to 3 days, or refrigerated for up to 5 days (bring to room temperature before serving so the brownie is fudgy again). Unfrosted triangles freeze beautifully: wrap individually in plastic wrap, freeze up to 2 months, and thaw overnight in the fridge before decorating.

Nutrition (Estimates)

All values are estimates per decorated tree (assuming 12 trees): Calories 480 kcal | Total Fat 26 g | Saturated Fat 16 g | Carbohydrates 60 g | Sugars 46 g | Protein 5 g | Sodium 160 mg | Fiber 3 g. Values will vary with tree size, frosting thickness, and toppings.