Grape Butter - cooking recipe

Ingredients

4 quarts grapes
1 quart apple, chopped
3 quarts sugar

Preparation

Mash grapes and cook in a large saucepan.
Press through a sieve back into the saucepan.
Add apples and sugar; cook until thick.
Plum butter may be cooked in the same way.
This is the whole recipe. I think directions on ball may come in handy.