Rhubarb Crunch is a classic springtime dessert that balances tart rhubarb with a sweet, oat-filled crumble topping. Originating from farm kitchens where rhubarb was one of the first harvests of the year, this dish has remained a nostalgic favorite for its comforting texture and vibrant flavor. A simple oat-and-brown sugar crust is layered with tender rhubarb and a sweet, vanilla-scented sauce, then topped with more crumble. Perfect served warm with a scoop of vanilla ice cream, Rhubarb Crunch is beloved for its simplicity, versatility, and the way it showcases rhubarb’s bright tang.
Ingredients
Crust & Topping
- 1 cup flour
- 1 cup brown sugar (packed)
- ½ cup oleo (melted, or butter)
- 1 tsp cinnamon
- ¾ cup oatmeal
Filling
- 4-5 cups rhubarb (peeled and cut into ½-inch pieces)
- 1 cup sugar
- 2 tbsp cornstarch
- 1 cup water
- 1½ tsp vanilla extract
Instructions
Step 1: Prepare the Crust and Topping
- In a mixing bowl, combine flour, brown sugar, melted butter (or oleo), cinnamon, and oatmeal. Mix well until crumbly.
Step 2: Assemble the Base
- Press half of the crumb mixture evenly into a greased 9×13-inch or 9-inch square baking pan.
Step 3: Add Rhubarb
- Spread the chopped rhubarb evenly over the base layer.
Step 4: Make the Filling Sauce
- In a saucepan, combine sugar and cornstarch. Stir in water and cook over medium heat until thickened and clear. Remove from heat and stir in vanilla extract.
Step 5: Assemble the Layers
- Pour the hot sauce evenly over the rhubarb layer. Sprinkle the remaining crumb mixture evenly over the top.
Step 6: Bake
- Bake at 350°F (175°C) for 1 hour, until the topping is golden and the filling is bubbling.
Step 7: Serve
- Serve warm or at room temperature, plain or with ice cream or whipped cream.
Tips
- Use fresh spring rhubarb for best flavor and texture
- Cut rhubarb evenly so it cooks uniformly
- A 9×9 pan yields thicker bars, while 9×13 makes softer squares
- Serve slightly warm or fully cooled for clean slices
- Add a pinch of nutmeg to enhance the cinnamon flavor
- Works well as a make-ahead dessert
- Delicious with whipped cream or vanilla ice cream
- Oatmeal topping can be doubled for extra crunch
- Let cool completely if transporting to a potluck
Nutrition
Calories: 280kcalCarbohydrates: 52gProtein: 3gFat: 9gSaturated Fat: 5gPolyunsaturated Fat: 1.2gMonounsaturated Fat: 2.5gCholesterol: 20mgSodium: 40mgPotassium: 180mgFiber: 2gSugar: 35gVitamin A: 250IUVitamin C: 4mgCalcium: 25mgIron: 1mg
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