Need ripe bananas in a pinch? Roast them. Preheat oven to 325°. Place unpeeled, bright yellow bananas on a lined baking sheet (bananas may ooze). Bake until skins are completely black, about 20 minutes. Flip bananas halfway through. Allow to cool for at least 5 minutes before handling.
Is the interior of your Dutch Oven stained brown? Do you have burn spots on your stainless steel pots? Use Bar Keepers Friend, water, and elbow grease to remove. In general, try cooking with fats (oil and butter) at lower heats. If you're needing to char something, opt for a cast iron.