Peach Orange Jam - cooking recipe

Ingredients

18 peaches
5 oranges
8 cups sugar
1 (6 ounce) bottle maraschino cherries

Preparation

Run peaches through a chopper. I think that you would blanch, peel and pit the peaches before running them through chopper.
Run all oranges through chopper, using rind of one orange. (just the zest; the whole rind will make it bitter; other recipes are using zest from all the oranges; you judge).
Add cherry juice to the peaches, oranges, and sugar.
Cook, stirring constantly, I am guessing this will burn easily.
Cook until thick.
When nearly done, add chopped cherries.
Bring to a boil.
Put in small jar and cover with paraffin wax (I said this was old recipe).
Another recipe had you water bathing for 10 minutes to seal; check Ball book.