Old-Fashioned Sheet Cake


Sheet cake: A Mr. T birthday cake and a happy child.

The humble rectangular pan is transformed into a hero when baking Granny’s Old-Fashioned Sheet Cake. This large flat cake is rich and moist, iced with a silky buttercream frosting. It’s great for when you need to serve a delicious dessert to lot of people.

And for aspiring pastry artists, there is plenty of surface area on a sheet cake for decoration and a personal message. Edible iced flowers are a popular addition but the sky is the limit. (Pro tip: a Mr. T cake is a surefire favorite.) This sheet cake's adaptability and tastiness make it perfect for birthday parties, graduation celebrations, or any other type of festivity!

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Ingredients

Cake
  • 3 cups (354 grams) cake flour
  • 1 12 cups (300 grams) granulated sugar
  • 1 tablespoon baking powder
  • 12 teaspoon baking soda
  • 34 teaspoon salt
  • 1 cup (230 grams) unsalted butter, room temperature
  • 1 cup (240 grams) whole milk, room temperature
  • 3 large eggs, room temperature
  • 1 tablespoon vanilla extract
  • 3 cup (80 grams) sour cream, room temperature

  • Buttercream Frosting
  • 1 cup (230 grams) unsalted butter, room temperature
  • 4 12 cups (540 grams) powdered sugar
  • 13 cup (75 grams) heavy cream
  • 2 teaspoons vanilla extract
  • 18 teaspoon salt
  • Method

    • 1. Preheat oven to 350 F (175 C). Grease a 9x13 baking pan and set aside.

    • 2. In a large bowl, add room temperature butter and granulated sugar. Beat until creamed. Add vanilla and eggs, one at a time, and mix until smooth.

    • 3. In a separate bowl, sift together dry ingredients: cake flour, baking powder, and salt. Add half of the dry ingredients to butter mixture. Mix until just combined. Add half of milk, again mixing until just combined. Repeat once more to add remaining dry ingredients and milk.

    • 4. Pour batter into prepared baking pan and spread into an even layer. Bake for 32-38 minutes or until the cake is baked through in the center and a toothpick comes out clean.

    • 5. Remove cake from oven and allow to cool completely in the pan on a wire cooling rack.

    Buttercream Frosting

    • 1. In a large bowl, add room temperature butter and beat until creamy. Add powdered sugar and slowly mix until ingredients are fully combined. Then, whip at high speed for 2-3 minutes until fluffy.

    • 2. Add heavy cream, vanilla extract, and salt. Whip for an additional 3-4 minutes, or until light and fluffy. Add additional heavy cream as needed to reach desired consistency.

    • 3. Spread frosting in an even layer onto cooled cake. Don't frost the cake until it is completely cooled or the frosting will melt.

    • 4. Cover leftover cake tightly and store in the refrigerator for up to 5 days.

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    Sheet Cakes: A Versatile Dessert for Every Occasion

    A Mr. T birthday cake and a happy child

    Sheet cakes are a staple dessert in American baking, beloved for their simplicity, practicality, and ability to feed a crowd with ease. As the name suggests, they are baked in large, flat rectangular pans called sheet pans, allowing for quick and even baking. Their large surface area makes them ideal for decorating, portioning, and serving at various gatherings. Whether for birthdays, weddings, office parties, or casual get-togethers, sheet cakes offer a convenient and delicious solution.

    A Brief History of Sheet Cakes

    The origins of the sheet cake are somewhat murky, but its roots can be traced back to early American baking traditions. Historically, simple one-layer cakes have been a mainstay in home kitchens due to their ease of preparation and minimal ingredients. By the mid-20th century, as home ovens became more common and accessible, the popularity of sheet cakes soared. Boxed cake mixes from brands like Betty Crocker and Duncan Hines further fueled the trend, making it easier than ever for home bakers to whip up a sheet cake with minimal effort.

    One of the most well-known varieties is the Texas sheet cake, a rich chocolate cake with a poured chocolate icing often studded with pecans. While its exact origins remain debated, the cake has been a Southern favorite for decades, praised for its moist texture and indulgent flavor. Despite its name, there is no definitive connection between the Texas sheet cake and the state of Texas—other than its big, bold flavors and ability to serve a crowd.

    Why Sheet Cakes Are So Popular

    Tips for Baking the Perfect Sheet Cake

    Creative Sheet Cake Ideas

    The Comforting Appeal of Sheet Cakes

    No matter your skill level, sheet cakes are one of the simplest and most adaptable desserts to bake. Their ease, versatility, and crowd-friendly nature make them a go-to choice for celebrations and everyday treats. With countless ways to customize flavors, frostings, and decorations, there's always a fresh spin to put on this classic favorite. Whether for a party or just a sweet indulgence, a well-made sheet cake is sure to delight and satisfy.

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