- 3 1/2 tablespoons butter, softened
- 3 1/4 tablespoons superfine sugar
- 2 large eggs
- 1 cup all-purpose flour
- 3/4 teaspoon baking powder
- 1 dash salt
- 1/2 cup lemon juice
- 2 tablespoons sour cream
- 2 teaspoons finely grated lemon zest
- 1/2 cup lemon curd, divided
- 8 plain meringue cookies
- Preheat oven to 350 degrees F (175 degrees C). Grease 8 muffin cups or line with paper liners.
- Combine butter and sugar together in a large bowl; beat until creamy. Add eggs; beat until smooth.
- Mix flour, baking powder, and salt together in a bowl. Beat gradually into the butter mixture. Mix lemon juice, sour cream, and lemon zest into the batter.
- Divide batter among prepared muffin cups, filling each almost full.
- Bake in the preheated oven until edges are lightly browned and a toothpick inserted into the center comes out clean, 15 to 18 minutes. Cool in the pan, about 30 minutes.
- Top each cupcake with a heaping teaspoon of lemon curd and 1 meringue cookie.