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Chocolate Sheet Cake

Use this amazing chocolate sheet cake recipe as the numbers for your New Year's Eve Countdown Cake! The remaining cake is a wonderful snack!
Prep Time15 minutes
Cook Time20 minutes
chilling time1 hour 44 minutes
Total Time35 minutes
Course: Dessert
Cuisine: American
Keyword: chocolate sheet cake
Servings: 24
Author: Amanda Rettke

Ingredients

FIRST PART

  • 1/3 cup brown sugar
  • 1/3 cup strong coffee
  • 1/2 cup dutch process cocoa
  • 1 tablespoon butter
  • 1 teaspoon vanilla

SECOND PART

  • 1 1/2 cups (192g) all-purpose flour
  • 1/2 teaspoon baking powder
  • 1 teaspoon baking soda
  • 1/2 cup (1 stick or 113g) salted butter, warm but not melted
  • 1/2 cup 100g granulated sugar
  • 1/2 cup 100g packed brown sugar
  • 2 large eggs, room temperature
  • 1/2 cup cold coffee
  • 1 teaspoon vanilla

Instructions

FIRST PART

  • Place all ingredients in the first part into a saucepan over low heat. Stir until they are fully incorporated, 5-7 minutes. Remove from heat and allow to cool a bit. It should be a little thick and similar to custard.

SECOND PART

  • In a medium bowl, sift flour, baking soda, and baking powder together.
  • Add 1/2 cup warm butter, sugars, eggs, cooled coffee, and vanilla to the flour mixture and mix with a hand-held mixer until fully combined. (or stir by hand)
  • Add the chocolate mixture from the FIRST PART to the ingredients from the SECOND PART. Stir by hand until all ingredients are well combined.
  • Pour onto a prepared (sprayed or lined with parchment) baking sheet (I used a 10x15in baking sheet). Smooth out the batter and gently tap on the counter.
  • Bake in a 350°F oven for 16-22 minutes, or until the center no longer appears wet and an inserted toothpick is removed with a few crumbs.
  • Allow to cool before frosting.