Ingredients
Equipment
Method
Preheat and prep the baking dish
- Preheat the oven to 350°F and grease a 9x13 baking dish.
- Make sure the dish is evenly greased so the fruit and crumble lift out cleanly.
Make the fruit filling
- Toss the strawberries and peaches with granulated sugar, cornstarch, lemon juice, and vanilla extract, then spread the mixture in the prepared dish.
- Press the fruit into an even layer so it bakes consistently and bubbles at the edges.
Make the oat crumble topping
- Combine rolled oats, all-purpose flour, brown sugar, cinnamon, and salt, then cut in the cold butter with fingertips until coarse crumbs form with pea-sized pieces.
- Stop when the butter is broken into small bits so the topping bakes up crisp and golden instead of sandy.
Assemble and bake
- Sprinkle the crumble topping evenly over the fruit so it covers most of the surface.
- Bake for 38–42 minutes at 350°F until the topping is deep golden brown and the fruit is bubbling thickly around the edges.
Cool and serve
- Cool for 10 minutes.
- Serve warm with vanilla ice cream so it melts over the hot, caramelized oat crumble.
Notes
For the best texture, cut the butter into the dry ingredients only until pea-sized pieces form—overworking warms the butter and softens the crumble. Refrigerate leftovers in an airtight container for up to 4 days; rewarm in the oven at 325°F until the topping re-crispens (10–15 minutes). Freezing isn’t recommended because the fruit topping can lose its crispness after thawing. For a lighter option, use reduced-sugar ice cream and keep the fruit portions the same.
