( adapted from Pillsbury and commenter)
1 lb frozen peaches
1 cup brown sugar
1/2 cup white sugar
sprinkle of lemon juice
Mix peaches, brown sugar and lemon juice together in bowl. Spread in baking dish in single layer and bake at 400 for 45 minute, until soft and bubbling.
Mix in one cup white sugar and pour into oven safe pan ( I used mini cast iron bakers). Can also add 1 tsp vanilla.
Cover with pie crust, cut to fit. Brush peach preserves on top lightly.
Bake at 400 for 30-45 minutes, until brown. Dot crust with butter and serve while warm.
IMPORTANT: Put pans on cookie sheet to bake, pie will bubble over and make a mess in your oven otherwise! Learned this one the hard way!!