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Copycat Costco Sheet Cake

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A delightful homemade version of the iconic Costco sheet cake, perfect for celebrations and gatherings.

Ingredients

Scale
  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 cup unsalted butter, softened
  • 1 cup whole milk
  • 4 large eggs
  • 4 teaspoons baking powder
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon salt
  • 1/2 cup cocoa powder (for chocolate variation)
  • Frosting of choice (e.g., chocolate or vanilla buttercream)

Instructions

  1. Preheat your oven to 350°F (175°C) and grease a large sheet pan.
  2. Creaming together the softened butter and sugar until light and fluffy.
  3. Add the eggs one at a time, mixing well after each addition.
  4. Stir in the vanilla extract and milk.
  5. Whisk together the flour, baking powder, cocoa powder (if using), and salt.
  6. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
  7. Pour the batter into the prepared sheet pan and spread it evenly.
  8. Bake for 25-30 minutes, or until a toothpick comes out clean.
  9. Let the cake cool completely before frosting.
  10. Slice and serve, enjoying your masterpiece.

Notes

Pair with fresh fruits or vanilla ice cream for a delightful treat. Store in an airtight container at room temperature for up to 3 days, refrigerate for up to a week, or freeze for up to 2 months.

Nutrition

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