Cut the pineapple guavas in half and scoop out the meat.
You'll need 2 cups worth. Put the guava meat into a food processor.
Add a Tablespoon of Lemon juice. This keeps the guava fruit from oxidizing too much.
Add in 2 Tbs of sugar and whiz it up.
Check the taste. If you feel you need to add more sugar or a tad more lemon juice do so.This all depends on the sweetness of your guava fruit. You control the flavor.
Pour the guava puree through a sieve and into a bowl to remove all the little seeds.
Pour the strained guava puree into a Pyrex dish.
Pop it into the freezer.
Stir it with a fork every 30 minutes or so, or you can just leave it. When you're ready to eat it, put the frozen guava puree into a food processor and whirl it up til it's creamy.
I shoveled mine into hollowed out guava skins and served them that way.
There it is, Pineapple Guava Sorbet! Fast and easy and no need for an ice cream machine. If you don't have any pineapple guavas, you can do this with almost any fresh or frozen fruit