Old-Fashioned Rhubarb Pie brings together sweet, tart, and buttery flavors in one classic homemade dessert. This comforting pie uses fresh rhubarb, flaky crust, warm cinnamon, and a sparkling sugar topping for the perfect balance of texture and flavor. Whether you bake it for spring gatherings, summer dinners, or holiday tables, this timeless dessert always feels special. Many home bakers love serving it with whipped cream or vanilla ice cream for an extra treat. In this guide, you will learn how to make the perfect Old-Fashioned Rhubarb Pie with simple ingredients, helpful baking tips, storage advice, and easy variations for every occasion.

Why You’ll Love This Recipe

This Old-Fashioned Rhubarb Pie stands out because it combines simple pantry ingredients with bright rhubarb flavor. The filling tastes sweet yet pleasantly tart, while the flaky crust creates the perfect bite.

Ingredients You’ll Need

Here’s everything you need to make this Old-Fashioned Rhubarb Pie.

Ingredient	Amount	Notes
Prepared pie crusts	1 package (14 to 16 ounces)	Thawed if frozen
Large egg	1	For egg wash
Water	1 teaspoon	Mixed with egg
Chopped rhubarb	1 1/2 pounds	About 6 cups
Granulated sugar	3/4 cup	Adjust slightly if needed
Cornstarch	1/4 cup	Thickens filling
Ground cinnamon	1/2 teaspoon	Optional
Salt	1/4 teaspoon	Balances sweetness
Coarse sugar	2 tablespoons	Demerara preferred

If you enjoy fruit desserts with flaky crusts, you might also like Blueberry Galette or Cherry Hand Pies.

How to Make Old-Fashioned Rhubarb Pie

This classic pie starts with a flaky double crust and a sweet rhubarb filling. First, prepare the crust and chill it while mixing the filling ingredients together. The cornstarch helps the filling set beautifully while the cinnamon adds subtle warmth.

Next, top the pie with the second crust and create vent holes so steam escapes during baking. The bubbling filling and golden crust signal that the pie is perfectly baked and ready to cool before slicing.

Step-by-Step Instructions

Arrange a rack in the middle of the oven and heat the oven to 375°F. Place a rimmed baking sheet inside the oven to preheat.
Unroll one pie crust and transfer it to a 9-inch pie plate. Press the dough gently into the bottom and sides without tearing it.
Whisk together the egg and water in a small bowl. Brush the crust lightly with the egg wash.
Refrigerate the prepared crust and second crust while making the filling.
Combine chopped rhubarb, granulated sugar, cornstarch, cinnamon, and salt in a large bowl. Toss until evenly coated.
Pour the filling mixture into the prepared pie crust, including any liquid released by the rhubarb.
Unroll the second crust onto a work surface. Cut 8 to 10 vent holes using a small cutter or knife.
Place the second crust over the filling. Crimp the edges tightly to seal.
Brush the top crust with egg wash and sprinkle generously with coarse sugar.
Bake for 40 to 45 minutes until the filling bubbles actively.
Check the crust after 30 minutes. Cover edges loosely with foil if they brown too quickly.
Let the pie cool on a wire rack for at least 4 hours before slicing.

Helpful Tips

A few simple tips can help you make the best Old-Fashioned Rhubarb Pie every time.

Tip	Why It Helps
Use cornstarch evenly	Prevents watery filling
Chill the crust before baking	Keeps the crust flaky
Add enough vent holes	Releases steam properly
Cool completely before slicing	Helps filling set
Preheat baking sheet	Creates crisp bottom crust

Frozen rhubarb works very well in this recipe, but thaw and drain excess liquid first. If you enjoy rustic baked desserts, check out Easy Mixed Berry Pie and Southern Blackberry Cobbler.

Details

Detail	Information
Flavor	Sweet, tart, buttery
Texture	Juicy filling with flaky crust
Occasion	Spring brunch, family dessert, holiday baking
Prep Time	25 minutes
Cook Time	40 to 45 minutes
Total Time	About 5 hours including cooling
Servings	8

Notes

You can customize this Old-Fashioned Rhubarb Pie in several easy ways.

Add strawberries for a sweeter filling
Use brown sugar for deeper flavor
Add nutmeg or ginger for extra warmth
Replace cinnamon with cardamom for a unique twist
Use homemade pie crust if preferred

Fresh rhubarb offers the best texture, but frozen rhubarb remains a convenient option year-round.

Nutritional Information (Per Serving)

Nutrient	Amount
Calories	320
Fat	14g
Protein	3g
Carbohydrates	47g
Sugar	24g
Fiber	2g
Sodium	240mg

Nutritional values are estimates and may vary depending on ingredients used.

Frequently Asked Questions

How do you keep rhubarb pie from being too watery?

Use enough cornstarch and allow the pie to cool fully before slicing. Vent holes also help excess steam escape during baking.

Should rhubarb be peeled before making pie?

No, rhubarb does not usually need peeling. Simply trim the ends and chop the stalks evenly.

What spices go best in old-fashioned rhubarb pie?

Cinnamon works beautifully, but ginger, nutmeg, and cardamom also pair nicely with rhubarb.

Can you use frozen rhubarb for homemade pie?

Yes, frozen rhubarb works well. Thaw and drain excess moisture before mixing the filling.

Why does rhubarb pair so well with sugar?

Rhubarb tastes naturally tart, so sugar balances the flavor and creates a more pleasant filling.

Storage Instructions

Cover the pie loosely and store it at room temperature for up to 3 days.

For longer storage, refrigerate the pie for up to 5 days. You can also freeze baked slices tightly wrapped for up to 3 months. Thaw overnight in the refrigerator before serving.

Conclusion

Old-Fashioned Rhubarb Pie delivers the perfect balance of sweet and tart flavors inside a flaky golden crust. This timeless dessert feels comforting, nostalgic, and perfect for sharing with family and friends. Whether you use fresh rhubarb from the garden or frozen rhubarb from the freezer, this pie turns simple ingredients into something memorable. Try this recipe for your next gathering, and enjoy every homemade slice with whipped cream or vanilla ice cream.

Old-Fashioned Rhubarb Pie | Amazing Spring Dessert Recipe