Cream 4 Tbsp. butter with sugars in a large mixing bowl using an electric hand mixer. Add eggs, one at a time, beating well between each addition. Add flour, baking powder, salt and cinnamon. Fold peaches and apples into the batter; set aside.
Preheat roaster 5 min. Melt remaining 1 Tbsp. butter in baking pan and distribute melted butter evenly on bottom and sides of pan. Spoon batter into baking pan; top evenly with blueberries and turbano sugar. Set timer and bake 15 min.
Open lid and gently stir the outer batter toward the center of pan. Close lid and bake an additional 15 min. Turn off roaster and let stand covered, 10 min. to set.
Tip: Serve warm with caramel ice cream or cold fresh cream.