Gold Drip Graduation Sheet Cake (Printable Version)

Golden drip sheet cake with mortarboard topper elevates any celebration and dazzles with rich flavor and eye-catching design.

# What You'll Need:

→ Cake

01 - 3 cups all-purpose flour
02 - 2 1/2 cups granulated sugar
03 - 1 tablespoon baking powder
04 - 1/2 teaspoon salt
05 - 1 1/4 cups unsalted butter, softened
06 - 1 cup whole milk, room temperature
07 - 1/2 cup sour cream, room temperature
08 - 5 large eggs, room temperature
09 - 2 teaspoons pure vanilla extract

→ Buttercream Frosting

10 - 1 1/2 cups unsalted butter, room temperature
11 - 6 cups powdered sugar, sifted
12 - 1/3 cup whole milk or heavy cream
13 - 2 teaspoons vanilla extract
14 - Pinch of salt

→ Gold Drip

15 - 1 cup white chocolate chips
16 - 1/3 cup heavy cream
17 - Edible gold luster dust
18 - 1 teaspoon vodka or clear extract

→ Decoration

19 - Fondant or chocolate mortarboard topper
20 - Gold sprinkles (optional)

# Steps:

01 - Preheat oven to 350°F. Grease a 12x18-inch sheet cake pan and line with parchment paper.
02 - In a large mixing bowl, whisk together flour, baking powder, and salt.
03 - Using a stand mixer, beat butter and granulated sugar until light and fluffy. Add eggs one at a time, mixing thoroughly after each addition. Blend in vanilla extract.
04 - Alternate adding the flour mixture and the combination of milk and sour cream to the creamed butter, starting and finishing with the dry mixture. Mix until just combined.
05 - Spread batter evenly into prepared pan, smoothing the top. Bake for 30 to 35 minutes, or until a toothpick inserted in the center emerges clean.
06 - Allow the cake to cool completely in the pan on a wire rack.
07 - Beat butter until creamy. Gradually incorporate powdered sugar, vanilla extract, and salt while mixing on low speed. Add milk or cream as needed to achieve a smooth, spreadable consistency.
08 - Spread a thick, even layer of buttercream over the cooled cake, covering the surface and sides smoothly.
09 - Heat heavy cream until steaming, then pour over white chocolate chips. Let sit for 2 minutes. Stir until ganache is smooth, then cool until slightly thickened.
10 - Using a spoon or piping bag, drip the white chocolate ganache along the cake's edges. Allow ganache to set.
11 - Mix edible gold luster dust with vodka or clear extract to create paint. With a food-safe brush, coat the white chocolate drips for a metallic gold finish.
12 - Center the mortarboard topper on the cake. Add gold sprinkles for extra festive presentation, if desired.

# Expert Insights:

01 -
  • It transforms an ordinary sheet cake into a showpiece fit for graduation photos and cheers.
  • Buttercream and gold drip make each bite rich yet playful, so even the grown-ups fought for extra corners.
02 -
  • If the cake isn’t fully cool before frosting, the buttercream will melt and slide—learned that after a hasty morning bake.
  • Letting the gold drip thicken for just a few more minutes prevents puddles and gives you elegant streaks.
03 -
  • Use a food-safe paintbrush for gold luster—cheap brushes shed bristles and spoil the shine.
  • A few drops of almond or lemon extract in the batter add subtle depth that pairs well with graduation bubbly.
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