All-Purpose Cake Recipe: One-Bowl Wonder With Foolproof Moisture

This all-purpose cake recipe delivers foolproof moisture and versatility for any occasion—whether you need layers, cupcakes, or a sheet cake. The secret lies in a carefully balanced mix of ingredients and a single-bowl method that simplifies the process without sacrificing texture or flavor. After years of testing, this recipe consistently yields tender crumbs, even after days in the fridge.

The foundation starts with all-purpose flour for structure, but the real magic happens with the moisture-retaining ingredients: buttermilk and vegetable oil. These create a cake that stays soft and delicious, not dry or crumbly. The recipe also includes a simple mixing technique—no creaming butter and sugar separately, which means less cleanup and fewer steps. Perfect for beginners or experienced bakers looking for a reliable base.

What makes this recipe truly adaptable is its ability to transform into countless desserts. Bake it in layers for a classic wedding cake, shape it into cupcakes for a party, or spread it into a sheet cake for a casual gathering. The frosting options are endless, from rich chocolate ganache to light buttercream, and the cake itself holds up beautifully to decoration. No matter how you serve it, the result is always moist, flavorful, and foolproof.

For those with dietary preferences, substitutions are easy—swap the buttermilk for coconut milk, replace eggs with flaxseed, or use almond flour for a gluten-free version. The recipe’s simplicity ensures it works for everyone, making it a staple in any kitchen. Let’s get baking!

Ingredients for all purpose cake

The perfect blend of moisture-retaining ingredients and structural elements for a foolproof cake base.

The all-purpose flour is the backbone of this cake, providing structure without density. King Arthur or Gold Medal brands are ideal for their consistent quality. For the moisture components, vegetable oil and buttermilk work together to create a tender crumb—no dryness here. The buttermilk adds subtle tang, so don't substitute with regular milk. The unsalted butter (cold and cubed) adds richness without melting into the batter prematurely. For the sugar, Domino brand is reliable, but any granulated works. Pre-sift your dry ingredients to avoid lumps in the final batter.

Need substitutions? Swap the buttermilk for 1 cup plain yogurt plus 1 tbsp lemon juice—the acidity helps activate the baking soda. Running out of vegetable oil? Melted coconut oil or apricot jam (same amount) works in a pinch, though texture may vary slightly. The vanilla extract can be replaced with 1 tsp vanilla bean paste for depth. For a gluten-free version, use 1:1 gluten-free flour blend (like Bob's Red Mill) and reduce the baking powder by 0.5 tsp. The whole milk can be omitted if needed, but the cake will be slightly less moist.

Store baked layers wrapped in plastic wrap at room temperature for up to 3 days or in the fridge for up to 5 days. For longer storage, freeze layers individually for up to 3 months. The buttermilk and eggs should be used within the recipe timeframe—don’t pre-mix the batter. If making ahead, prepare the dry ingredients separately and mix just before baking. The vegetable oil can be stored in the pantry for 1 year unopened, but once opened, keep it in a cool, dark place for 6 months.

Step-by-step instructions for all-purpose cake

This one-bowl method guarantees tender, moist layers that stay fresh for days.

In a large mixing bowl, whisk together the 2 cups All-Purpose Flour, 2 tsp Baking Powder, 0.5 tsp Baking Soda, and 0.5 tsp Salt. Use a wire whisk for 30 seconds to ensure even distribution of leavening agents. Sifting isn't required here, but if you prefer, sift the flour first for a lighter texture. The baking powder and soda work together to create lift, while the salt balances sweetness.

Set the dry mixture aside while you prepare the wet ingredients. This separation prevents overmixing, which can develop gluten and make the cake dense. The key to a tender crumb is minimal handling of the flour after mixing.

In the same bowl, add the 1.5 cups Granulated Sugar, 1 cup Vegetable Oil, 1 cup Buttermilk, and 2 whole Large Eggs. Using an electric mixer on medium speed, beat for 2 minutes until the mixture is smooth and fully combined. The sugar should dissolve completely, and the oil should be evenly distributed.

This step creates the foundation for moisture. The buttermilk adds tanginess while keeping the cake tender, and the eggs provide structure. If you notice any lumps, use a silicone spatula to gently fold them out. The mixture should be thick but pourable—like heavy batter.

Cut the 0.5 cup Unsalted Butter into small cubes and add them to the wet mixture. Using a hand mixer or wooden spoon, mix on low speed until the butter is fully melted and incorporated. Then, add the 0.25 cup Whole Milk and mix again until smooth. The butter adds richness, while the milk enhances tenderness.

This is where the cake's moisture profile really comes together. The cold butter creates pockets that hold air, contributing to the cake's lightness. If the mixture seems too thick, add 1-2 tablespoons of milk to achieve a smooth, pourable consistency.

Add the 1 tbsp Vanilla Extract and mix for 10 seconds to distribute the flavor evenly. Then, gradually fold in the dry ingredients using a spatula, mixing just until combined. Avoid overmixing—stop as soon as you see no more flour streaks. The goal is to maintain a light, airy texture.

This final fold ensures the leavening agents are evenly distributed without developing gluten. The vanilla infuses the entire batter, creating a subtle but consistent flavor throughout. The batter should be thick but still able to hold its shape when spooned.

Preheat your oven to 350°F and grease two 8-inch round cake pans or line them with parchment paper. Divide the batter evenly between the pans and smooth the tops with a spatula. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

The cake is done when the edges pull away slightly from the pan and the top springs back when gently pressed. If the top browns too quickly, tent the pans with foil. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely before frosting or serving.

Dietary considerations for this dish

Gluten-Free Adaptation

Swap the all-purpose flour for a 1:1 gluten-free flour blend like Bob's Red Mill or King Arthur, but reduce the baking powder by 0.5 teaspoon to prevent over-rising. I’ve found that almond flour works too—just replace the original flour with 2 cups almond flour and add 0.5 cup extra milk for moisture. The texture will be denser but still delicious. Always weigh your gluten-free flour for accuracy, as volume can vary. 🌾

Dairy-Free Options

Replace the buttermilk with 1 cup coconut milk (full-fat for best results) plus 1 tablespoon lemon juice to mimic the tang. For the 0.5 cup unsalted butter, use vegan butter like Miyoko’s or Earth Balance, or ½ cup coconut oil melted and cooled slightly. The whole milk can be swapped with oat milk or soy milk—just ensure it’s unsweetened. These tweaks keep the cake moist without sacrificing flavor. 🥛

Egg-Free Substitutes

Replace the 2 eggs with 2 tablespoons ground flaxseed mixed with 6 tablespoons warm water (let sit for 5 minutes to thicken). For a neutral taste, use ½ cup unsweetened applesauce or ½ cup mashed banana—both add moisture and bind the batter. If you prefer a lighter texture, ¼ cup aquafaba (chickpea brine) whipped to stiff peaks works wonders. Test your substitute before baking to ensure the right consistency. 🥚

Lower-Sugar Versions

Reduce the 1.5 cups granulated sugar to 1 cup and add ½ cup unsweetened applesauce or ½ cup mashed sweet potato for natural sweetness and moisture. For a caramel-like depth, replace ½ cup sugar with ½ cup coconut sugar or ½ cup maple syrup. These swaps cut calories while keeping the cake tender. Balance with a pinch more baking powder (0.25 tsp extra) to compensate for reduced sugar. 🍚

Nut-Free Considerations

If avoiding nuts entirely (not just almond flour), stick with a rice flour-based gluten-free blend or oat flour (certified gluten-free). For extra moisture, add 2 tablespoons melted butter or oil to the batter. Skip nut-based extracts like almond extract—opt for vanilla bean paste or orange zest for natural flavor without allergens. Always check labels on gluten-free flours for cross-contamination warnings. 🌟

Frequently asked questions