Ingredients
Equipment
Method
Make the cupcake batter
- Whisk the all-purpose flour, baking powder, and salt in a bowl until evenly combined.
- Beat the softened butter with granulated sugar until light and fluffy.
- Add the eggs one at a time, beating well after each addition.
- Alternate adding the flour mixture and sour cream, beginning and ending with the flour mixture.
- Add the vanilla extract and whole milk and mix just until incorporated.
- Fill the cupcake liners about 2/3 full with batter.
Bake and cool
- Bake at 350°F for 18 minutes, until a toothpick comes out clean.
- Cool the cupcakes completely before frosting.
Frost and top
- Beat the softened butter with powdered sugar until fluffy.
- Mix the cinnamon with the granulated sugar for coating.
- Pipe frosting onto the cooled cupcakes.
- Roll the frosted tops in the cinnamon sugar mixture to coat.
- Top each cupcake with a churro stick or churro piece.
- If using, drizzle with melted dark chocolate and serve.
Notes
For the best texture, ensure the cupcakes are fully cool before piping frosting so the cinnamon-sugar coating sticks without melting. Store in an airtight container in the refrigerator for up to 3 days; bring to room temperature before eating. Freezing is not recommended for the frosted and coated tops. If you want a lighter frosting, swap half the butter in the frosting for an equal amount of plain Greek yogurt, then beat until fluffy (note the frosting may be slightly softer).
