The Best Gluten-Free Birthday Cake: Fluffy, Moist Vanilla Cake With Buttercream
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A real, showstopping gluten-free birthday cake with a fluffy, tender crumb and smooth vanilla buttercream. This is the cake that finally makes celiacs feel like they are not missing out.
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Ingredients Explained
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How to Make GF Birthday Cake (Step by Step)
Step 1: Prep Your Pans
Grease two 9-inch round pans, line the bottoms with parchment paper circles, and dust with GF flour. This guarantees clean release.
Step 2: Whisk the Dry Ingredients
Combine flour, xanthan gum, baking powder, baking soda, and salt. Set aside.
Step 3: Cream the Butter and Sugars
This step is NOT optional. Beat softened butter with both sugars for a full 3-4 minutes until the mixture is pale, light, and almost doubled in volume. This aerates the batter and creates the fluffy texture. A stand mixer or hand mixer is essential here.
Step 4: Add Eggs One at a Time
Adding eggs one at a time prevents the batter from curdling and ensures a smooth, even texture.
Step 5: Alternate Dry and Wet
Add the flour mixture and milk in three alternating additions (start and end with flour). Mix on LOW speed β just until combined. Overmixing makes GF cakes tough.
Step 6: Bake
Divide between pans and bake at 350Β°F for 28-32 minutes. The most reliable test: press the top gently. If it springs back, it's done.
Step 7: Cool Completely, Then Frost
GF cakes crumble if frosted warm. Cool completely on cooling racks before applying buttercream.
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Expert Tips
The Brown Sugar + Sour Cream Trick
Most GF cake recipes use only granulated sugar and produce a dry, crumbly cake. Adding brown sugar and sour cream traps moisture inside the crumb structure. This is why our cake stays moist for days.
Level Your Layers
Use a serrated knife to slice off any domed tops so your layers stack flat. Professionals do this β it makes the final cake look polished.
Crumb Coat First
Apply a thin layer of frosting, chill for 15 minutes, then apply the final coat. This traps crumbs and creates a smooth finish.
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You shouldn't have to eat a sad, crumbly cupcake while everyone else gets layered cake. This is your recipe. Save it, bookmark it, and bake it for every celebration.
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The Best Gluten-Free Birthday Cake: Fluffy, Moist Vanilla Cake With Buttercream
A real, showstopping gluten-free birthday cake with a fluffy, tender crumb and smooth vanilla buttercream. This is the cake that finally makes celiacs feel like they are not missing out.
Essentials
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Ingredients
- 2 1/2 cups (350g) gluten-free 1-to-1 baking flour
- 1/2 tsp xanthan gum (omit if flour contains it)
- 2 tsp baking powder
- 1/2 tsp baking soda
- 1/2 tsp salt
- 1 cup (200g) granulated sugar
- 1/2 cup (100g) light brown sugar
- 3/4 cup (1.5 sticks) unsalted butter, softened
- 4 large eggs, room temperature
- 2 tsp pure vanilla extract
- 1 cup whole milk (or oat milk), room temperature
- 2 tbsp sour cream or plain yogurt
- FROSTING: 2 cups (4 sticks) unsalted butter, softened
- FROSTING: 5 cups (600g) powdered sugar, sifted
- FROSTING: 2 tbsp heavy cream or oat cream
- FROSTING: 2 tsp pure vanilla extract
- FROSTING: Pinch of salt
Instructions
Preheat oven to 350Β°F. Grease and line two 9-inch round cake pans with parchment paper circles.
In a medium bowl, whisk together GF flour, xanthan gum, baking powder, baking soda, and salt.
In a large bowl (or stand mixer), cream the softened butter, granulated sugar, and brown sugar until light and fluffy, about 3-4 minutes.
Add the eggs one at a time, mixing after each. Add the vanilla and sour cream and mix.
Alternate adding the flour mixture and milk in three additions (flour-milk-flour), mixing on low just until combined after each addition.
Divide batter evenly between the two prepared pans. Smooth the tops.
Bake for 28-32 minutes, until a toothpick inserted in the center comes out clean.
Cool in pans for 10 minutes, then invert onto cooling racks. Cool completely before frosting.
FROSTING: Beat softened butter for 5 minutes until pale and fluffy. Gradually add powdered sugar 1 cup at a time. Add cream, vanilla, and salt. Beat on medium-high for 3-4 minutes until smooth.
Place one cake layer on a stand or plate. Spread 1 cup frosting on top. Place second layer. Frost top and sides with remaining buttercream.
Nutrition Information
Calories: 485 per slice | Carbs: 56g | Protein: 4g | Fat: 28g
Nutrition information is an estimate provided by an online calculator.
Find Gluten-Free Recipes on Amazon
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Top Gluten-Free Picks
Bob's Red Mill GF 1-to-1 Flour
Direct 1:1 substitute for any recipe
King Arthur GF Flour
Professional baking quality
Xanthan Gum
Essential GF binder for baking
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Celiac Safety Glossary
- Celiac disease
- Celiac disease is a serious autoimmune disorder in which ingesting gluten β a protein found in wheat, barley, and rye β triggers an immune response that damages the small intestine's villi, affecting approximately 1 in 100 people worldwide according to the Celiac Disease Foundation.
- Gluten
- Gluten is a family of storage proteins (prolamins and glutelins) found naturally in cereal grains like wheat (including varieties like spelt, kamut, and farro), barley, and rye, which acts as a binder to give food elasticity and shape.
- Avenin (Oats)
- Avenin is a protein found in oats that is structurally similar to gluten. While most celiacs can tolerate pure, uncontaminated oats, a small percentage of celiacs react to avenin itself.
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About the Author
Rachel Lopez
Recipe Developer & Certified Pastry Chef
Rachel is a classically trained pastry chef who transitioned to gluten-free baking after her daughter was diagnosed with celiac disease. She develops and tests every recipe on Check Gluten, ensuring they work perfectly with GF ingredients.
Meet our full team βMedical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult your physician or a registered dietitian before making dietary changes related to celiac disease or gluten sensitivity. Read full disclaimer.
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