One-Bowl Moist Vanilla Sheet Cake with Melted Butter
A fluffy and tender vanilla sheet cake made in one bowl with melted butter and a touch of cornstarch for a soft crumb. This American-inspired recipe, ready in about 45 minutes, layers all-purpose flour, granulated sugar, baking powder into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 280 calories and feeds 12, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 2 cups all-purpose flour
- 1 1/2 cups granulated sugar
- 2 tsp baking powder
- 1/2 tsp salt
- 2 tbsp cornstarch
- 1/2 cup unsalted butter, melted
- 1 cup whole milk
- 3 large eggs
- 2 tsp vanilla extract
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Equipment for this recipe
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Instructions
- Step 1: Preheat your oven to 350°F and grease a 9x13-inch sheet pan with butter or nonstick spray.
- Step 2: In a large mixing bowl, whisk together 2 cups all-purpose flour, 1 1/2 cups granulated sugar, 2 tsp baking powder, 1/2 tsp salt, and 2 tbsp cornstarch until well combined.
- Step 3: Pour in 1/2 cup melted unsalted butter, 1 cup whole milk, 3 large eggs, and 2 tsp vanilla extract. Using a hand mixer or whisk, beat the batter on medium speed for about 2 minutes until smooth and slightly fluffy.
- Step 4: Pour the batter evenly into the prepared sheet pan and smooth the top with a spatula.
- Step 5: Bake for 30-35 minutes until a toothpick inserted into the center comes out clean and the edges begin to pull away from the pan.
- Step 6: Remove the cake from the oven and allow it to cool completely in the pan on a wire rack before slicing and serving.









