There’s something magical about Funfetti cake—it’s colorful, nostalgic, and always brings a smile! This gluten-free Funfetti Birthday Cake is soft, buttery, and filled with jimmie sprinkles that melt into the batter, creating a confetti-like effect in every slice. Whether you’re celebrating a birthday, a special occasion, or simply craving a fun and delicious dessert, this cake is guaranteed to be a crowd-pleaser.
Not only is this cake bursting with flavor, but it’s also topped with a silky vanilla bean buttercream, crunchy cookie crumbles, and adorable cake truffles, making it the ultimate party cake. It’s perfectly balanced between sweet, creamy, and slightly crunchy—giving you a bite that’s just as fun as it looks! The best part? It’s gluten-free, so everyone can enjoy a slice (or two!).
What’s in this Cake?
This Funfetti Birthday Cake is made with simple yet delicious ingredients that come together to create a moist and festive treat:
Gluten-Free Vanilla Cake – A blend of GF 1:1 flour, oat flour, white rice flour, and millet flour creates a light, fluffy texture while maintaining structure. Buttermilk and vanilla bean paste add extra moisture and richness.
Jimmie Sprinkles & GF Cookie Crumbles – The heart of any Funfetti cake! Jimmie sprinkles melt into the cake for that classic rainbow look, while crushed gluten-free cookies add a surprising crunch.
Vanilla Bean Buttercream – A whipped vanilla buttercream that’s light, airy, and perfectly smooth for frosting and decorating.
Cake Truffles – A fun bonus! These bite-sized treats are made from extra cake, coated in white chocolate, and finished with sprinkles for an extra festive touch.
Gluten Free Funfetti Birthday cake
Made with gluten-free flour, this Funfetti Birthday Cake offers the perfect balance of sweetness and texture without compromising on flavor. The colorful sprinkles baked right into the cake add a playful twist, making each slice as delightful to the eyes as it is to the taste buds. Topped with a smooth, creamy frosting and even more sprinkles, this cake is a showstopper at any event. It's easy to make and guaranteed to make any birthday or celebration feel extra special!
Ingredients
GF Vanilla Cake
Butter Cream
Cake Truffles
Preparation
-
GF Vanilla Cake
- Add the Apple Cider Vinegar to the milk and let it sit for 10-15 minutes while you prep the other ingredients.
- Get out your flours for the gluten free flour blend.
- Sift together the GF 1:1 flour blend, Oat flour, White Rice four, Millet Flour, Baking Soda, Baking Powder, and Salt in a bowl. Set aside.
- In a separate bowl, using a stand mixer or hand mixer, cream the butter and sugar together until it has a whipped texture.
- Next add in the eggs, one at a time.
- Then add in the vanilla extract, or vanilla bean paste, mix until all ingredients are combined.
- Add in half the buttermilk mixture, then half of the four blend, alternate each until all ingredients are incorporated into the wet ingredients.
- Lastly remove the mixing bowl from the stand, or remove your hand mixer, and fold in the sprinkles, use more or less to your liking.
- Pour 2 ⅓ cups (525g) of batter into three 6” cake rounds. Then take the remaining batter and place it into a 9x9 square cake pan. Bake the 6” rounds for 35 minutes and bake the 9x9 square for 25 minutes. Be sure to do the toothpick test to see if they are done in the middle.
-
Vanilla Bean Buttercream
- Beat 1 ½ Cup (226g) unsalted butter, until smooth.
- Add in 5 cups (600g) powdered sugar,, scoop the powdered sugar into the measuring cup instead of packing and leveling the powdered sugar, 1 cup at a time, mixing on low speed until combined.
- Add in 2 Tbs heavy whipping cream, 2 Tsp vanilla bean paste. Once all combined, whip on high speed for 10 minutes, or until the frosting has stiff but airy peaks
-
Cake Truffles
- Once the 9x9 square cake is done baking, remove from pan and add into a bowl. Break it into small pieces. Add ¼ cup of buttercream to the dish and mix it into the broken up cake.
- After the cake and buttercream is mixed together take a scoop of the mixture and roll into half inch rounds.
- Cool the rolled truffles in the refrigerator for 1-2 hours or for 30 minutes in the freezer, this will allow them to firm.
- Melt white the white chocolate in a microwave safe bowl using 30 second intervals until it completely melted. Then add in coconut oil and mix until silky.
- Stick toothpick in the center of the cake truffles that were removed from the refrigerator and dip them into the
white chocolate. - Dip, or roll, them into sprinkles.
- Place in the refrigerator for 30 minutes.
-
Cake Assembly
- Get a bag and crush the GF cookies into small pieces.
- Layer a thin amount of frosting onto a plate or a cake turntable. Add the first cake layer, then apply a layer of buttercream. Add in half the crushed cookie mixture.
- Add the second layer of the cake and repeat step 2.
- Add the third layer of the cake and place the cake in the refrigerator for 30 minutes.
- After the cake is set, add a thin layer of buttercream to the outside of the cake.
- Add frosting swirls to the top, cookie pieces and truffles.
- Top with the cake truffles.
Note
This Gluten-Free Funfetti Birthday Cake is best enjoyed fresh on the day it's made to savor the fluffy cake and creamy buttercream. However, leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Bring to room temperature before serving for the best taste and texture.
Enjoy the ultimate celebratory treat that's both fun and gluten-free!
