Peach nectar comes in cans and juice box size containers and can be found at stores like Target and Walmart. However, if you prefer, you can make your own peach puree.
In your food processor, drop two pitted fresh, ripe peaches. Add a tablespoon of lemon juice and a teaspoon or two of sugar. Process until smooth and strain through a fine mesh sieve.
Refrigerate puree, or if you want to save it even longer you can freeze it in ice cube trays.
Making a Frozen Bellini
Combine 3 parts frozen peaches and 1 part peach puree in a blender. Process until smooth.
Add frozen mixture to champagne flutes until half full.