Preheat oven to 350 degrees. Peel and cut up peaches (about 2 cups fresh). Then add a can of pineapple chunks with half the juice. Add 1/3 cup sugar and 1/4t. vanilla. Stir and let sit. Place 1/2c. butter in a 9x13 in dish and put in oven to melt.
Mix 1c. flour, 1c. sugar, 1c. milk, and 1t. baking powder in bowl.Once butter has melted, add fruit.