Spring Funfetti Cake Pastel

Spring is a season of renewal, joy, and color—and this Spring Funfetti Cake with Pastel Buttercream captures all of that magic in every bite. Imagine slicing into a fluffy vanilla cake studded with rainbow sprinkles, revealing bursts of color inside a tender crumb. Topped with swirls of pastel buttercream in soft pinks, blues, yellows, and purples, this cake is as beautiful as it is delicious. Whether you're celebrating a birthday, Easter brunch, baby shower, or simply the arrival of warmer days, this show-stopping dessert brings whimsy and sweetness to any spring gathering.

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This cake brings together the nostalgic joy of funfetti with the elegance of pastel buttercream frosting. The secret to its incredibly moist crumb is the combination of whole milk and sour cream, which adds richness and tang. Meanwhile, the rainbow jimmies sprinkles hold their shape and color beautifully during baking, creating confetti-like flecks throughout each slice. The pastel buttercream is silky smooth, lightly sweetened, and can be piped, dolloped, or swirled for a dreamy, watercolor effect that makes this cake a true centerpiece.

Ingredients

• For the Cake: 2 1/2 cups (315 g) all-purpose flour, 2 1/2 tsp baking powder, 1/2 tsp baking soda, 1/2 tsp salt, 1 cup (225 g) unsalted butter at room temperature, 1 1/2 cups (300 g) granulated sugar, 4 large eggs at room temperature, 2 tsp pure vanilla extract, 1 cup (240 ml) whole milk at room temperature, 1/2 cup (120 g) sour cream at room temperature, 2/3 cup (100 g) rainbow sprinkles (jimmies, not nonpareils)
• For the Pastel Buttercream: 1 1/2 cups (340 g) unsalted butter at room temperature, 5 cups (600 g) powdered sugar, sifted, 1/4 cup (60 ml) whole milk, 2 tsp pure vanilla extract, pinch of salt, food coloring gels in pastel pink, blue, yellow, and purple

Instructions

Step 1

Preheat oven to 350°F (175°C). Grease and line two 9-inch (23 cm) round cake pans with parchment paper.

Step 2

In a medium bowl, whisk together flour, baking powder, baking soda, and salt.

Step 3

In a large bowl, beat the butter and sugar together until light and fluffy (about 3 minutes).

Step 4

Add eggs one at a time, beating well after each addition. Mix in vanilla extract.

Step 5

In a separate bowl, whisk milk and sour cream until combined.

Step 6

Add the flour mixture to the butter mixture in three parts, alternating with the milk mixture, beginning and ending with flour. Mix just until combined.

Step 7

Gently fold in the rainbow sprinkles with a spatula.

Step 8

Divide batter evenly between the prepared pans. Smooth tops.

Step 9

Bake for 28–32 minutes, or until a toothpick inserted into the center comes out clean.

Step 10

Cool cakes in pans for 10 minutes, then turn onto a wire rack to cool completely.

Pastel Buttercream – Step 11

Beat butter until smooth and creamy (about 2 minutes).

Step 12

Gradually add powdered sugar, mixing on low until incorporated.

Step 13

Add milk, vanilla, and salt. Beat on high until fluffy (2–3 minutes).

Step 14

Divide buttercream into 4 bowls. Tint each with a different pastel color using food gel.

Step 15

To decorate, dollop or pipe colored buttercream onto cooled cake layers as desired. Swirl colors together for a marbled pastel effect.

Zusatztipps für die Zubereitung

Use room temperature ingredients for the best texture and easier mixing. Make sure your butter, eggs, milk, and sour cream have all sat out for at least 30 minutes before you begin. When folding in the sprinkles, use a gentle hand to avoid overmixing the batter, which can make the cake dense. Jimmies (rod-shaped sprinkles) are essential here—nonpareils will bleed color and dissolve during baking. If you want perfectly level cake layers, use a serrated knife or cake leveler to trim any domed tops before frosting. For a smooth buttercream finish, chill the frosted cake for 15 minutes before doing a final coat.

Varianten und Anpassungen

This recipe is highly adaptable. Swap sour cream for Greek yogurt if that's what you have on hand—it will still provide the same moisture and tang. For a different flavor profile, try almond extract instead of vanilla, or add a tablespoon of lemon zest to the batter for a citrus twist. If you prefer cupcakes, simply divide the batter into lined cupcake tins and bake for 22–24 minutes. You can also make this a three-layer cake by dividing the batter into three 8-inch pans and adjusting the bake time slightly. For a dairy-free version, use plant-based butter and milk alternatives, though texture may vary slightly.

Serviervorschläge

Serve this cake at room temperature for the best flavor and texture. It pairs wonderfully with a glass of sparkling Moscato, fresh lemonade, or a light floral tea like chamomile or lavender. For an elegant spring brunch, plate individual slices with fresh berries, edible flowers, or a light dusting of powdered sugar. This cake also makes a stunning centerpiece on a dessert table—consider adding pastel macarons, meringues, or sugar cookies alongside it. Leftovers can be stored in an airtight container at room temperature for up to two days, or refrigerated for up to five days.

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This Spring Funfetti Cake with Pastel Buttercream is more than just a dessert—it's a celebration on a plate. With its tender crumb, playful sprinkles, and dreamy pastel swirls, it brings joy to every occasion. Whether you're an experienced baker or just starting out, this recipe is approachable, forgiving, and guaranteed to impress. So gather your ingredients, preheat your oven, and get ready to create a cake that tastes as good as it looks. Happy baking!

Recipe FAQ

→ What makes the cake light and fluffy?

Beating butter and sugar until fluffy, incorporating eggs one at a time, and alternating dry and wet ingredients helps create a tender, airy crumb.

→ How to prevent sprinkles from bleeding color?

Using high-quality jimmie sprinkles rather than nonpareils helps avoid color bleeding inside the batter during baking.

→ Can sour cream be substituted in the batter?

Yes, Greek yogurt can be used as a substitute to maintain moisture and tang without affecting texture significantly.

→ What is the best way to tint buttercream evenly?

Divide the buttercream into separate bowls and add gel food coloring carefully to achieve smooth, pastel shades without overmixing.

→ How do you know when the cake is baked thoroughly?

Insert a toothpick in the center; it should come out clean or with just a few moist crumbs after 28-32 minutes of baking.