Rhubarb Crumble Pie

Tart, sweet, and irresistibly comforting, Rhubarb Crumble Pie is a delightful way to enjoy this uniquely tangy spring vegetable. With its tender fruit filling and buttery oat crumble topping, this pie brings a rustic charm and mouthwatering flavor to any dessert table. It’s the kind of bake that makes you feel like you're in grandma’s kitchen—warm, fragrant, and oh-so-delicious.

I first made this pie during rhubarb season when my garden was overflowing. One slice in, and it instantly became a seasonal staple. Whether served warm with a scoop of vanilla ice cream or chilled from the fridge, it's always a crowd-pleaser.

Why You’ll Love Rhubarb Crumble Pie

• Perfectly Balanced: Tart rhubarb meets sweet crumble.
• No Fuss Crumble Topping: Easier than traditional pie crusts.
• Comfort Food Classic: Homey and nostalgic.
• Great for Spring and Summer: A lovely use for fresh garden rhubarb.
• Make-Ahead Friendly: Keeps beautifully for several days.
• Freezer-Friendly: Store extras for future treats.

Ingredients You’ll Need

For the Filling:

• 4 cups rhubarb, chopped – Fresh is best; frozen can work if thawed and drained.
• 1 cup granulated sugar – Balances rhubarb’s tartness.
• ¼ cup cornstarch – Thickens the filling.
• 1 teaspoon vanilla extract – Adds depth.
• 1 tablespoon lemon juice – Brightens the flavor.

For the Crumble Topping:

• 1 cup all-purpose flour – Forms the base of the crumble.
• ½ cup rolled oats – Adds texture and heartiness.
• ½ cup brown sugar – Sweet and slightly caramelized flavor.
• ½ teaspoon cinnamon – Adds warmth.
• ½ cup unsalted butter, melted – Brings it all together.
• Pinch of salt – Enhances all the flavors.

Additional:

• 1 (9-inch) unbaked pie crust – Use store-bought or your favorite homemade recipe.

Step-by-Step Instructions

Step 1: Preheat and Prep

• Preheat your oven to 375°F (190°C).
• Place the pie crust into a 9-inch pie dish and flute the edges if desired.

Step 2: Make the Rhubarb Filling

• In a large bowl, combine chopped rhubarb, sugar, cornstarch, vanilla extract, and lemon juice.
• Mix until the rhubarb is well coated.
• Pour the filling into the prepared pie crust.

Step 3: Make the Crumble Topping

• In a medium bowl, stir together flour, oats, brown sugar, cinnamon, and salt.
• Add melted butter and mix until crumbly.
• Sprinkle the topping evenly over the rhubarb filling.

Step 4: Bake

• Place the pie on a baking sheet to catch any drips.
• Bake for 45–55 minutes, or until the filling is bubbly and the topping is golden brown.
• If the crust or topping begins to brown too quickly, tent loosely with foil.

Step 5: Cool and Serve

• Let the pie cool at room temperature for at least 2 hours to set.
• Serve warm or chilled with whipped cream or vanilla ice cream.

Serving and Storage Tips

Rhubarb crumble pie is delightful served warm on its own or with a generous scoop of vanilla ice cream. For a more indulgent twist, try it with a dollop of clotted cream or Greek yogurt.

Store leftovers covered in the fridge for up to 4 days. To reheat, warm slices in the oven at 300°F for 10–15 minutes.

To freeze, wrap the cooled pie tightly in plastic wrap and foil. Freeze for up to 3 months. Thaw overnight in the fridge and warm before serving.

Helpful Notes

• Thickening Tip: Let the pie cool completely for the filling to fully set.
• Crumble Variations: Add chopped nuts or coconut flakes to the topping.
• Fruit Add-Ins: Mix in strawberries or apples for extra dimension.
• Don’t Skip the Lemon Juice: It lifts the flavor and balances sweetness.
• Frozen Rhubarb?: Drain well to avoid a soggy crust.

Frequently Asked Questions

1. Can I use frozen rhubarb?
Yes, just thaw and drain it first to remove excess water.

2. How do I prevent a soggy bottom crust?
Blind bake the crust for 10 minutes, or place the pie on the lower oven rack.

3. Can I use a different topping?
Absolutely. Try a lattice crust or classic double crust if you prefer.

4. Is this pie very tart?
It has a pleasant tang, but the sugar and crumble topping keep it balanced.

5. Can I make this pie gluten-free?
Yes! Use a gluten-free crust and substitute flour with a gluten-free blend.

Final Thoughts

Rhubarb Crumble Pie is a cozy, crowd-pleasing dessert that highlights the best of spring and early summer produce. With its buttery crumble topping and tart, jammy filling, it’s a rustic treat that never fails to impress.

Bake one for your next gathering or simply enjoy a slice with your afternoon tea. However you serve it, this pie is sure to warm hearts and satisfy cravings.