These fluffy and moist birthday cupcakes are flecked with sprinkles and topped with your favorite frosting. My recipe serves 12 but doubles easily.Recipe includes a how-to video!
In a separate small bowl or large measuring cup, whisk together sour cream, egg, egg yolk, and vanilla extract, then whisk in milk.
½ cup(113g) sour cream, 1 large egg + 1 large egg yolk, 1 teaspoon vanilla extract, ¼ cup(60ml) whole milk
Add sour cream mixture to the dry ingredients and stir until batter is uniform and well-combined.
Stir in sprinkles.
⅓ cup sprinkles
Divide batter into prepared cupcake tin, filling only ¾ full (note: if you fill up any higher the cupcake tops may spread a bit on the tin, if you have excess batter just discard rather than overfill) and bake in center rack of oven for 17-19 minutes until a toothpick inserted in the center comes out clean or with a few moist crumbs.
Allow cupcakes to cool in baking pan for 5-10 minutes before carefully removing to a cooling rack to cool completely before frosting with your favorite frosting.
1 batch white chocolate frosting
Video
Notes
Storing
Store in an airtight container at room temperature for up to 3 days.