Many people in my life have been to the beach in the last few weeks. The beach makes me think of ice cream, specifically those chocolate-vanilla swirl soft serve cones, and this is as close as I can get at the moment: a marble cupcake with a chocolate-vanilla buttercream swirl.

The cupcake recipe itself comes from Sally’s Baking Addiction and it’s delicious on its own; so delicious, in fact, I think the frostings are kind of too much for it. I used my vanilla buttercream and chocolate buttercream, which are also delicious on their own, but I think they’re a little too much for the cupcake. Next time I think I’ll use my cocoa frosting instead, so stay tuned.

Ingredients

• 1 2/3 cups flour (spooned and leveled)
• 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup unsalted butter, melted
• 1 cup sugar
• 1 egg, at room temperature
• 1/4 cup vanilla yogurt
• 3/4 plus 1 tablespoon milk, divided
• 2 teaspoons vanilla extract
• 2 tablespoons unsweetened cocoa powder
• 1 batch vanilla buttercream
• 1 batch chocolate buttercream

Preparation

Preheat oven to 350 degrees. Line two cupcake tins with paper liners; my batch made 15 cupcakes.

In a large bowl, combine flour, baking powder, baking soda, and salt; set aside. In a microwave-safe bowl, melt butter, then add sugar and stir to combine; mixture will be grainy. Refrigerate for 1 minute, then remove and add egg, yogurt, 3/4 cup milk, and vanilla extract. Stir in flour mixture until no lumps remain.

Remove 3/4 cup of batter and place in a small bowl; stir in cocoa powder and remaining tablespoon of milk. Batter will be thicker than that of the vanilla mixture.

Using a 1-inch cookie scoop, scoop portions of vanilla batter into cupcake tins; top with a tablespoon of chocolate batter, then another scoop of vanilla, until all batter is used. Swirl if desired or just let the batters do their own thing, which is what I did.

Bake for 20-24 minutes, until a cake tester comes out clean. Remove from oven and place cupcakes on wire racks to cool completely.

To make vanilla buttercream, place butter and salt in a mixing bowl and beat for a few minutes using the paddle attachment. Add powdered sugar and beat on low speed until the sugar is fully incorporated into the butter. Add vanilla extract and beat; add milk if necessary, but you want this frosting to be thicker in consistency so it’s easier to pipe along with the chocolate buttercream.

To make chocolate buttercream, place butter and salt in a mixing bowl and beat for a few minutes using the paddle attachment. Add powdered sugar and cocoa powder and beat on low speed until the sugar and cocoa are fully incorporated into the butter. Add vanilla extract and beat; add milk if necessary, but like with the vanilla, you want this frosting to be thicker in consistency.

Fit an 18-inch piping bag with a large open star tip (I use the Wilton 1M) and carefully fill half of the bag with vanilla buttercream and the other half with the chocolate buttercream so the frostings are side by side vertically in the bag. Pipe swirls onto cupcakes; you’ll have some frosting left over that you can use for other treats.