Drain peach juice into a measuring cup to make one cup. if it's not a full cup, just add milk or water to make a cup. I pour the peaches into a 8 in. metal or glass pan. I mix the juice with the flour and sugar and then I cut in about a tablespoon of butter then pour it on top of the peaches.
Then bake at 350 for about 30 minutes until top is brown.