Funfetti Crumb Cake
🎉 Funfetti Crumb Cake
Ingredients:
Crumb Topping
1 cup all-purpose flour
½ cup brown sugar
¼ cup granulated sugar
1 tsp cinnamon
Pinch of salt
½ cup unsalted butter, melted
½ cup rainbow sprinkles
Cake:
1½ cups all-purpose flour
¾ cup granulated sugar
1½ tsp baking powder
¼ tsp baking soda
¼ tsp salt
½ cup unsalted butter, melted and cooled
½ cup sour cream (or Greek yogurt)
2 large eggs
1 tsp vanilla extract
â…“ cup milk
½ cup rainbow sprinkles
Optional Glaze:
½ cup powdered sugar
1–2 tbsp milk
Splash of vanilla
Instructions:
1. Prep
Preheat oven to 350°F (175°C).
Line or grease an 8x8-inch pan.
2. Make the Crumb Topping
Mix flour, sugars, cinnamon, and salt.
Stir in melted butter until chunky crumbs form.
Fold in sprinkles and set aside.
3. Make the Cake Batter
Whisk flour, sugar, baking powder, baking soda, and salt.
In another bowl, mix butter, sour cream, eggs, vanilla, and milk.
Combine wet and dry just until smooth.
Gently fold in sprinkles.
4. Assemble
Spread batter evenly into the pan.
Sprinkle crumb topping generously over the batter (don’t press down).
5. Bake
Bake 40–45 minutes, until a toothpick comes out clean from the cake layer.
6. Glaze (Optional)
Whisk glaze ingredients and drizzle once slightly cooled.
✨ Tips:
•Use white cake mix instead of scratch batter for an ultra-easy version
•Add almond extract (½ tsp) for bakery-style flavor
•Swap cinnamon for cake batter flavoring for full funfetti vibes
•Double the crumb if you’re a crumb-cake loyalist
Baking a Funfetti Crumb Cake is not only a delightful way to celebrate special occasions but also a fantastic everyday treat. From my experience, using sour cream in the batter helps achieve an incredibly moist texture that balances perfectly with the crunchy crumb topping. Incorporating rainbow sprinkles in both the batter and topping adds bursts of color and a subtle sweetness that make each bite festive and fun. One tip I've found particularly helpful is to avoid overmixing the batter once you combine the wet and dry ingredients. Just mix until smooth to keep the crumb structure light and fluffy. When preparing the crumb topping, folding in the melted butter until you get chunky crumbs ensures the topping crisps up nicely during baking. For those short on time, substitution with a white cake mix can simplify the process without sacrificing flavor—just add the sprinkles and crumb topping as instructed. Additionally, I like to add a splash of almond extract to the batter for a bakery-like aroma. If you're a fan of cinnamon, keeping it in the topping really elevates the cake’s flavor profile, but feel free to swap it for cake batter flavoring if you want extra funfetti vibes. Baking at 350°F for around 40-45 minutes usually yields a perfectly baked cake. Use a toothpick to check for doneness—it should come out clean from the cake layer. Cooling the cake slightly before drizzling the optional vanilla glaze adds a beautiful shine and subtle sweetness to finish. Lastly, don’t be shy about doubling the crumb topping if you love that extra crunch—it’s a great way to satisfy crumb-cake lovers! Overall, this Funfetti Crumb Cake is a crowd-pleaser that combines the joy of sprinkles with classic crumb cake texture and flavor, making it ideal for birthdays, brunches, or any celebration.