One-Bowl Vanilla Butter Cake with Melted Butter and Cornstarch

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 drafted and published.

A moist, fluffy vanilla butter cake made in one bowl using melted butter and cornstarch for tender crumb and rich flavor. This American-inspired recipe, ready in about 50 minutes, layers all-purpose flour, cornstarch, 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 390 calories and feeds 8, 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 8 American cuisine 390 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F. Grease and flour an 8-inch round cake pan.
  2. Step 2: In a large mixing bowl, whisk together 2 cups all-purpose flour, 1/2 cup cornstarch, 2 tsp baking powder, 1/2 tsp baking soda, and 1/2 tsp salt.
  3. Step 3: Add 3/4 cup melted unsalted butter, 1 1/4 cups granulated sugar, 3 large eggs, 2 tsp vanilla extract, 1 cup buttermilk, and 2 tbsp vegetable oil to the dry ingredients. Whisk vigorously by hand until the batter is smooth and slightly thickened.
  4. Step 4: Pour the batter into the prepared pan and tap the pan gently to release any air bubbles.
  5. Step 5: Bake for 35-40 minutes or until a toothpick inserted into the center comes out clean. Let cool in the pan for 10 minutes before transferring to a wire rack to cool completely.

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