In a bowl, mix the flour, baking powder, and salt together.
In the bowl of a stand mixer, beat the superfine sugar, butter, eggs, and vanilla on the highest speed until light and fluffy, about 3 minutes. Reduce the speed to low, add the flour mixture, and beat for 30 seconds.
Spoon the batter into 10 paper liners placed in the cups of a muffin tin. Let the batter rest at room temperature for 30 minutes.
Preheat the oven to 350°F (176°C).
Bake the cupcakes until golden and firm, 18 to 25 minutes. The interior of the cupcakes should be very light and fluffy, and a toothpick or tester inserted in the center of a cupcake should come out clean. Let the cupcakes cool completely on a wire rack.