- Using a metal pan: Lemon juice is very acidic and can react with metal pans, which may give the bars a slightly metallic taste. It’s best to use a glass pan (or ceramic if needed) to keep the flavor bright, sweet, and perfectly tart.
- Skipping the chill time: It’s tempting to cut into them right away, but if you don’t let the bars cool and chill in the fridge first, they can turn into a messy puddle. Giving them time to set is the key to getting those neat, clean slices.
- Adding powdered sugar too early: If you dust the bars while they’re still warm or before they’ve chilled, the powdered sugar will melt right into the filling. For the prettiest finish, sprinkle it on right before serving.
