Step 1
Preheat the oven to
350 degrees F (175 degrees C).
Grease a 12-cup muffin
tin or line cups with paper liners.
Step 2
Beat sugar and butter together in a large bowl with an electric mixer
until light and fluffy.
Add eggs one at a time, beating well
after each addition. Beat in vanilla extract.
Stir in flour just
until mixed; spoon batter into the prepared muffin cups, filling each
3/4 full.
Step 3
Bake in the preheated oven until the tops spring back when lightly
pressed, 18 to 20 minutes.
Cool in the tin briefly before
transferring to a wire rack to cool completely.