Finely chop 2 cups of peaches removing pits.

Finely chop mango removing pits.

In a large sauce pan place both peaches and mangos. Add 1 cup of sugar and juice from 1 lemon. Over a medium heat let fruit cook for about 10-15 minutes. Once fruit comes to a boil add one package of fruit pectrin. Stir fruit so it does not stick. Continue cooking over a medium heat until sauce becomes thick.