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Nostalgic Funfetti Sheet Cake
A light, moist, and nostalgic sheet cake that mimics the classic flavor and texture of a grocery store bakery cake, complete with rainbow sprinkles and a creamy buttercream frosting.
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Ingredients
- 1 tbsp clear vanilla extract (essential for the classic 'rainbow' flavor)
- cornstarch (used to give the cake a light consistency)
- water
- buttermilk (provides richness and moisture)
- Jimmy Sprinkles (rainbow sprinkles; use this specific shape to prevent bleeding)
- all-purpose flour
- sugar
- vegetable shortening (for the frosting; half of the fat content)
- unsalted butter (for the frosting; half of the fat content)
- powdered sugar (for the frosting)
Steps
- 1
Preheat your oven and prepare a sheet cake pan.
- 2
In a large mixing bowl, combine the cake base ingredients including the flour, sugar, and cornstarch.
- 3
Add the wet ingredients to the dry mixture, including the water, buttermilk, and one tablespoon of clear vanilla extract.
- 4
Gently fold in the Jimmy Sprinkles (rainbow sprinkles) into the batter, ensuring they are evenly distributed but not over-mixed to prevent bleeding.
- 5
Pour the batter into the prepared pan and bake until a toothpick inserted into the center comes out clean.
- 6
While the cake cools, prepare the frosting by beating together equal parts vegetable shortening and unsalted butter.
- 7
Gradually add powdered sugar and additional clear vanilla extract to the frosting mixture until it reaches a creamy, spreadable consistency.
- 8
Once the cake is completely cool, spread the frosting evenly over the top and garnish with more sprinkles if desired.
Notes
The use of clear vanilla extract and a 50/50 split of shortening and butter in the frosting is what provides the specific 'grocery store' bakery flavor profile. Using Jimmy-style sprinkles is critical as they are designed not to bleed their colors into the white cake batter during baking.
Nutrition per serving
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