Preheat oven to 350F. Melt butter in 9x13 casserole dish. Separate half cup sugar and all cinnamon; and separate out the peaches from the corn syrup.
Mix 1 cup sugar and the other dry ingredients together in a bowl.
Stir in milk and corn syrup from peaches. Put peaches in casserole dish with melted butter. Pour batter over the top of the peaches. Mix cinnamon and 1/2 cup sugar; sprinkle over top of mixture.
Bake at 350 45 min for 1hr or until top crust is golden brown.
