Quick One-Bowl Vanilla Sheet Cake with Melted Butter

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A simple, tender vanilla sheet cake made in one bowl with melted butter and oil for moistness, perfect for everyday celebrations. This American-inspired recipe, ready in about 50 minutes, layers all-purpose flour, baking powder, salt 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 380 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.

Prep: 10 min Cook: 40 min Serves 12 American cuisine 380 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F. Grease and flour a 9x13-inch sheet pan.
  2. Step 2: In a large mixing bowl, whisk together 2 1/2 cups all-purpose flour, 2 1/2 tsp baking powder, 1/2 tsp salt, and 2 cups granulated sugar until combined.
  3. Step 3: Add 1/2 cup melted unsalted butter, 1/4 cup vegetable oil, 3 large eggs, 2 tsp pure vanilla extract, and 1 cup whole milk to the dry ingredients. Whisk vigorously by hand until smooth and lump-free.
  4. Step 4: Carefully stir in 1 cup boiling water until batter is thin and well blended.
  5. Step 5: Pour batter into prepared pan and bake for 35-40 minutes until a toothpick inserted in the center comes out clean.
  6. Step 6: Cool in pan on a wire rack for 20 minutes before slicing and serving. Optional: frost with your favorite icing or dust with powdered sugar.

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