My son makes a Dutch baby nearly every morning. His recipe is similar except oven and cast iron heated to 450, 4 eggs, 1 cup flour, 1 cup milk, 20 minutes. He puts a generous amount of butter in the skillet before the batter. The whole thing inflated like a giant crispy puff ball and looks like the cover of a food magazine. He finishes with powdered sugar and a large dose of lemon juice. I never thought about peaches…I will definitely try it. Easy recipe and batter is good overnight.