Rinse and let the berries or other fruit dry before assembling. You don’t want to make a soggy pizza! Cut the fruit or berries if needed.
In a small microwavable bowl, combine the lemon juice and cornstarch with a spoon to make a slurry. Add the water and powdered sugar, stirring to combine well.
Microwave the mixture on high, watching for it to boil (takes about 1-2 minutes), then allow it to boil for a full minute before removing. Total time in the microwave should be between 2-3 minutes. Let it cool at room temp for a few minutes, until it is warm but not scorching hot.
Pour or brush the mixture on top of the fruit to create a glaze. This will help to keep the fruit looking fresh and will prevent browning with some fruit as well. Enjoy right away or cover with plastic wrap and store in the fridge until ready to eat.
Enjoy right away or store covered in the fridge until ready to dig in!