Butter: For convenience, melt the butter and drizzle it over the cake mix instead of placing sliced pieces.
Texture variation: Stir in quick or old-fashioned oats with the cake mix for a crumble-like texture.
Fruit alternatives: Substitute peaches with equal amounts of canned blackberries, cherries, blueberries, raspberries, or apples. If swapping for fresh fruit, use 2 cups in place of the canned peaches.
Peach choice: Avoid peach pie filling; its consistency is too thick and lacks the liquid required to moisten the cake mix properly.
Slow cooker option: Layer peaches and syrup in a greased slow cooker. Combine melted butter with cake mix and crumble over peaches. Cook on HIGH for 2 hours or on LOW for 4 hours.
Storage: Refrigerate leftovers in an airtight container for up to 3–4 days and reheat as needed.
Freezing: Store in a sealed container and freeze for up to 3 months. Thaw overnight in the refrigerator and reheat in a 350°F oven until warmed through.