These race-day cupcakes are tender vanilla cakes topped with a simple buttercream and colorful sprinkles, easy to share at a cupcake run in Lafayette, Indiana, or any cheerful gathering. The recipe uses familiar pantry ingredients and a straightforward mixing method, so you can bake and decorate them ahead without special equipment.
Ingredients
- 1 ½ cups (190 g) all-purpose flour
- 1 ½ teaspoons baking powder
- ¼ teaspoon fine salt
- ½ cup (113 g) unsalted butter, softened
- ¾ cup (150 g) granulated sugar
- 2 large eggs, at room temperature
- 2 teaspoons vanilla extract
- ½ cup (120 ml) whole milk, at room temperature
- ½ cup (113 g) unsalted butter, softened, for frosting
- 2 cups (240 g) powdered sugar, sifted if lumpy
- 1 teaspoon vanilla extract, for frosting
- 1–2 tablespoons (15–30 ml) milk or cream, as needed
- ⅛ teaspoon fine salt, for frosting
- 2 tablespoons (about 25 g) colorful sprinkles
Instructions
- Heat the oven to 350°F (175°C). Line a standard 12-cup muffin pan with paper liners. Let the butter, eggs, and milk come to room temperature; this helps the batter combine evenly.
- In a medium bowl, whisk together the flour, baking powder, and ¼ teaspoon salt. Set the dry ingredients aside.
- In a large bowl, beat ½ cup softened butter and the granulated sugar with a hand mixer on medium speed for about 2–3 minutes, until pale and fluffy. Scrape down the bowl. Beat in the eggs one at a time, then mix in 2 teaspoons vanilla. If the mixture looks slightly curdled, continue; it should come together when the flour is added.
- Add about one-third of the flour mixture and mix on low just until incorporated. Mix in half the milk, then repeat with another third of the flour, the remaining milk, and the final flour. Stop as soon as no dry streaks remain; overmixing can make cupcakes dense.
- Divide the batter evenly among the liners, filling each about two-thirds full. Bake for 17–19 minutes, rotating the pan once if your oven has hot spots. They are ready when the tops spring back lightly and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool the cupcakes in the pan for 5 minutes, then move them to a wire rack and cool completely, about 25–30 minutes. Do not frost warm cakes, or the buttercream may melt.
- For the frosting, beat the remaining ½ cup softened butter on medium speed until smooth, about 1 minute. Add powdered sugar in two or three batches, mixing on low first to avoid a cloud of sugar. Beat in 1 teaspoon vanilla, the frosting salt, and 1 tablespoon milk or cream. Beat until fluffy, adding the remaining liquid a teaspoon at a time if needed for a spreadable consistency.
- Spread or pipe frosting onto the fully cooled cupcakes and finish with sprinkles. For a run-themed look, use bright colors or arrange sprinkles in a simple finish-line pattern. Serve at room temperature.
Tips
- Measure flour by spooning it into the measuring cup and leveling the top, or weigh it. Scooping directly from the bag packs in extra flour and can dry out the cakes.
- Room-temperature ingredients are helpful, but don’t microwave butter until oily or melted. If the eggs are cold, place them in a bowl of warm—not hot—water for about 5 minutes.
- For a dairy-free version, use a plant-based baking stick and unsweetened oat or soy milk. Choose a baking-style butter alternative that is firm when chilled; soft tub spreads can make the frosting loose.
- Use sprinkles labeled for baking if you want color throughout the cake; ordinary decorations added to the frosting are less likely to bleed into the topping.
Serving Suggestions
Set the cupcakes out on a platter with the frosting fully set, and serve them as a snack after a community run, at a birthday table, or alongside coffee and cold milk. If they will be outdoors, keep them shaded and cool; buttercream softens quickly in warm weather. Put out a small plate or napkins, since sprinkles can scatter when people carry cupcakes around.
Variations
For lemon cupcakes, replace the vanilla in the cake with 1 tablespoon (15 ml) lemon juice and add 1 teaspoon finely grated lemon zest; the juice adds a little tang, so keep the milk quantity unchanged. For chocolate cupcakes, replace ¼ cup (30 g) of flour with ¼ cup (20 g) unsweetened cocoa powder and add 1 tablespoon (15 ml) extra milk if the batter seems unusually thick. For a simple color theme, tint the frosting with a small amount of gel food coloring, adding it gradually. You can also leave off the sprinkles and finish with a light dusting of powdered sugar just before serving.
Storage and Reheating
Because these cupcakes contain buttercream, refrigerate them if they will not be served within about 2 hours, especially in a warm room. Store in a covered container in the refrigerator for up to 3–4 days. Bring them to room temperature for about 30 minutes before serving for a softer cake and frosting; there is no need to reheat them. Unfrosted cupcakes can be frozen in an airtight container for up to 2 months. Thaw overnight in the refrigerator or for a few hours at room temperature, then frost. Refrigerate leftovers within 2 hours of serving.
Frequently Asked Questions
Can I make these cupcakes a day ahead?
Yes. Bake and cool them, then store unfrosted cupcakes in an airtight container at room temperature overnight. Frost the next day. If already frosted, keep them covered in the refrigerator and let them sit at room temperature briefly before serving.
How can I tell when the cupcakes are done?
The tops should spring back gently when touched, and a toothpick inserted in the center should come out clean or with a few crumbs. Start checking at 17 minutes because ovens and pans vary. Avoid opening the oven repeatedly early in baking, which can cause the cakes to sink.
Can I use salted butter?
Yes. Use the same amount of salted butter, but omit the ¼ teaspoon salt from the cake and the ⅛ teaspoon from the frosting. Salt levels differ by brand, so taste the frosting before adding any extra.
Why did my cupcakes turn out dense?
Common causes include too much flour, overmixing after adding it, or butter and sugar that were not creamed until fluffy. Measure carefully, mix only until the flour disappears, and check that your baking powder is fresh.
Can I make the frosting without a mixer?
Yes, though it takes more effort. Make sure the butter is soft enough to press easily but not melted, then beat it with a sturdy spoon or whisk before gradually mixing in the powdered sugar and liquid. A hand mixer makes the frosting lighter and smoother.
Can I bake these in a mini muffin pan?
Yes. Line the wells and fill them about two-thirds full, then begin checking after 10–12 minutes. The yield depends on the size of your pan, and the mini cupcakes are done when they spring back and a toothpick shows no wet batter.
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