Vanilla Funfetti Cake — 3 Layers (8-inch)

Ingredients

Dry Ingredients
• 3 cups (360 g) all-purpose flour
• 1 tbsp baking powder
• ½ tsp salt

Wet Ingredients
• 1 cup (226 g) unsalted butter, room temperature
• 2 cups (400 g) sugar
• 4 large eggs, room temperature
• 1 tbsp vanilla extract
• 1 ¼ cups (300 ml) whole milk, room temperature
• ½ cup (120 ml) sour cream (adds moisture)

Sprinkles
• ¾ cup rainbow jimmies sprinkles
(Avoid nonpareils—they bleed color into the batter.)

🧁 Vanilla Buttercream (enough to fill & frost all 3 layers)
• 1 ½ cups (340 g) unsalted butter, room temperature
• 6 cups (720 g) powdered sugar
• ¼ cup (60 ml) heavy cream or milk
• 2 tsp vanilla extract
• Pinch of salt

🎂 Instructions

1. Make the cake
2. Preheat oven to 350°F (175°C).
3. Grease three 8-inch round pans and line with parchment circles.
4. Whisk together the flour, baking powder, and salt.
5. In a separate bowl, beat the butter and sugar until light and fluffy (3–4 minutes).
6. Add eggs one at a time, beating after each.
7. Mix in vanilla.
8. Add dry ingredients in 3 parts, alternating with milk + sour cream.
   • Start + end with flour.
   • Mix until just combined—DO NOT overmix.
9. Fold in sprinkles gently.
10. Divide batter evenly among the 3 pans.
11. Bake 23–28 minutes, or until a toothpick comes out clean.
12. Cool cakes completely before frosting.
13. Make the Buttercream
14. Beat butter until smooth and pale (2–3 min).
15. Add powdered sugar gradually.
16. Add cream, vanilla, and salt.
17. Beat on high for 3–5 minutes until fluffy.
18. Assemble the Cake
19. Level cakes if domed.
20. Place the first layer on a board. Spread buttercream.
21. Add the second layer. Spread more frosting.
22. Add the third layer.
23. Frost the outside with a thin crumb coat. Chill 10–15 min.
24. Add the final thick coat of buttercream.
25. Decorate with sprinkles around the base and top.

✨ Tips for Best Results
• Use room-temperature ingredients for a lighter crumb.
• Fold sprinkles in quickly to avoid color streaking.
• Freeze layers for 20 minutes before assembling for easier stacking.
• For extra flavor, add 1 tsp almond extract to the batter.