Gluten-Free Vanilla Cake with Chocolate Sour Cream Frosting

This light, fluffy gluten-free vanilla cake is perfect for birthdays, special occasions, or anytime you want a tender, moist yellow cake. Serve with your favorite frosting or try the included chocolate sour cream frosting for a slightly tangy chocolate finish.

If you’re looking for a reliable gluten-free vanilla cake with a moist, tender crumb, this homemade yellow cake is a great choice. It uses simple pantry ingredients and yields a light, airy cake that tastes like a classic yellow cake—no one will guess it’s gluten-free. It’s just as easy as a boxed mix but made from scratch for better flavor and texture.

Use any frosting you prefer—American buttercream, chocolate buttercream, or the chocolate sour cream frosting included here. The chocolate sour cream frosting is less sweet than many frostings and has a pleasant tang from the sour cream, making it ideal if you prefer a balanced chocolate flavor.

Make this gluten-free vanilla cake for birthdays, graduations, or just because you deserve a special treat. The recipe adapts well to layer cakes, sheet cakes, or cupcakes.

Gluten-Free Vanilla Cake Ingredients

• Gluten-Free 1:1 Flour: Use an all-purpose gluten-free blend that includes a binder such as xanthan gum. King Arthur Measure for Measure works well.
• Cornstarch: Lightens the flour to mimic cake flour for a finer, airy crumb.
• Neutral Oil: Canola, vegetable, or refined coconut oil work. Butter can be substituted but yields a slightly denser cake.
• Milk: Regular 2% milk is used here. Unsweetened almond milk works as a dairy-free substitute.
• Whole Eggs: This recipe relies on eggs for structure. For an egg-free version, look for a vegan vanilla cake recipe.
• Cake Batter Flavor or Vanilla: Cake batter flavor gives a classic “yellow cake” note; swap with vanilla extract if preferred.

Chocolate Sour Cream Frosting Ingredients

This frosting uses just four ingredients: semi-sweet baking chocolate, butter, sour cream, and powdered sugar. It creates a smooth, slightly tangy chocolate frosting. The recipe has not been tested with dairy-free butter or sour cream.

How to Make Gluten-Free Yellow Cake

1. Preheat oven to 350°F. Grease pans and line bottoms with parchment, or prepare a muffin tin with liners.
2. Whisk together the gluten-free flour, cornstarch, baking powder, and salt.
3. In a large bowl, beat the sugar, oil, eggs, vanilla, and cake batter flavor on medium speed for two minutes until light and fluffy.
4. Add the dry ingredients alternately with the milk, mixing after each addition until just combined. Scrape the bowl as needed.
5. Divide batter among prepared pans and bake (see times below). Cool completely before frosting.

How To Make Chocolate Sour Cream Frosting

1. Melt the butter and semi-sweet chocolate together in a heatproof bowl over a double boiler.
2. Stir constantly until smooth and fully melted.
3. Remove from heat and let cool for about 5 minutes, then stir in the sour cream until combined.
4. With a mixer, gradually add the powdered sugar. The mixture may look lumpy at first but will smooth and thicken as you finish adding sugar.
5. Mix until thick and smooth. Let the frosting cool to room temperature before spreading on cooled cake. Add more powdered sugar to thicken or a splash of milk to thin if needed.

The recipe yields enough frosting for a 9×13-inch cake, 24 cupcakes, or a double-layer 8- or 9-inch cake.

Storage

• Frosted cake will stay fresh and moist for at least 3 days when refrigerated.
• To make ahead, cool baked layers completely, wrap each layer tightly in plastic, and freeze. Thaw at room temperature when ready to assemble; you can frost while still slightly frozen if desired.
• Frosting can be prepared a few days in advance and stored in the refrigerator. Bring it back to room temperature and rewhip before using; add a little milk if it needs thinning.
• Once frosted, keep the cake refrigerated. Allow it to sit at room temperature for 1–2 hours before serving for best texture and flavor.

FAQ

Top Tips

• Measure flour correctly: Use the spoon-and-level method or weigh ingredients for best results. Fluff the flour, spoon it into the cup, and level with a straight edge.
• Cool before serving: Gluten-free cakes often taste best once fully cooled; warm cakes can have a slightly odd flavor until they rest.
• Cool completely before frosting: Frosting a warm cake can cause the frosting to soften or melt. Chill the cake briefly if needed to speed cooling.
• Check internal temperature for doneness: Gluten-free cakes can appear done before they are fully baked. For reliable results, use an instant-read thermometer—an internal temperature around 210°F indicates doneness.

Supplies Needed For This Cake

Basic supplies: mixing bowls, a hand or stand mixer, measuring cups or a kitchen scale, parchment paper, cake pans (8″ or 9″), a 9×13 pan or muffin tin for cupcakes, and a digital instant-read thermometer for accurate doneness checks.

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