5-Star Grandma’s Rhubarb Custard PieGrandma’s Rhubarb Custard Pie Recipe – A Delicious Timeless Dessert

Posted on June 17, 2025 ·

by Bellie

Grandma’s Rhubarb Custard Pie Recipe

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Rhubarb has long been a beloved ingredient Grandma’s Rhubarb Custard Pie Recipe in desserts, prized for its unique tartness that balances perfectly with sweet flavors. One of the most iconic rhubarb dishes is Grandma’s Rhubarb Custard Pie. This rhubarb custard pie recipe combines the tangy bite of rhubarb with a creamy, velvety custard filling, all wrapped up in a flaky pie crust. It’s a dessert that’s both comforting and flavorful, perfect for any occasion, from a casual family dinner to a holiday feast. If you’re a fan of rhubarb desserts or simply searching for the best rhubarb recipes, this pie is a must-try.

For other classic and comforting desserts, try out Honey Peach Cream Cheese Cupcakes or Sweet Potato Pie with Crumble Topping.

Grandma’s Rhubarb Custard Pie

A Timeless Classic: Grandma’s Rhubarb Custard Pie

Rhubarb, often referred to as “the pie plant,” has been used in baking for centuries. It’s especially popular in spring and early summer when fresh rhubarb is abundant. When combined with a creamy custard filling, it creates a dessert that’s both sweet and tart, rich and refreshing. This particular recipe for Grandma’s Rhubarb Custard Pie is a traditional favorite passed down through generations. It’s simple yet utterly delicious, showcasing the natural flavors of rhubarb while highlighting the smoothness of the custard.

If you’re seeking a rhubarb custard pie recipe that’s both easy to make and incredibly satisfying, look no further. This pie is a delightful balance of textures, from the crispy crust to the smooth custard and tender rhubarb. It’s the kind of dessert that reminds you of family gatherings and cozy afternoons spent baking with loved ones. If you’re also a fan of quick and easy desserts, consider making some Cinnamon Sugar Air Fryer Banana Chips.

Essential Ingredients for Rhubarb Custard Pie

The beauty of Grandma’s Rhubarb Custard Pie lies in its simplicity. The ingredients are common pantry staples, but they come together to create a dessert that’s nothing short of extraordinary. Here’s a breakdown of what you’ll need to make this delightful pie:

For the Pie Filling:

  • 2 cups fresh rhubarb, chopped into small pieces
  • 1 ½ cups granulated sugar
  • 3 large eggs
  • 1 ½ cups heavy cream
  • 3 tablespoons all-purpose flour
  • 1 teaspoon vanilla extract
  • ¼ teaspoon salt

For the Pie Crust:

  • 1 pie crust (store-bought or homemade)
  • 1 tablespoon butter (optional, for greasing the crust)

The rhubarb custard pies are known for their creamy texture, which is achieved through the combination of heavy cream, eggs, and flour. These ingredients come together to create a filling that’s both smooth and rich, perfectly complementing the rhubarb’s tartness. For another delicious fruit-filled dessert, check out Peach Cake with Brown Sugar Frosting.

Grandma’s Rhubarb Custard Pie

Step-by-Step Instructions for Making Rhubarb Custard Pie

Now that you have your ingredients ready, it’s time to dive into the preparation of this wonderful pie. The process is fairly simple, and even beginners can master this recipe with ease. Follow these step-by-step instructions to make a perfect rhubarb custard pie every time.

How to Prepare the Pie Filling

  1. Prepare the Rhubarb: Start by washing and chopping the rhubarb into small pieces. It’s essential to use fresh rhubarb for this recipe, as it will give the pie the best flavor. Make sure to remove any leaves, as rhubarb leaves can be toxic.
  2. Make the Custard Mixture: In a large mixing bowl, beat the eggs with the sugar until they are fully combined. Add in the heavy cream, flour, vanilla extract, and salt, whisking everything together until the mixture is smooth. The flour will help thicken the custard as it bakes.
  3. Add the Rhubarb: Gently fold the chopped rhubarb into the custard mixture. Make sure the rhubarb is evenly distributed throughout the custard, as this ensures that each bite of the pie will have a balanced flavor.

How to Prepare the Pie Crust

  1. Preheat the Oven: Before you begin assembling your pie, preheat your oven to 375°F (190°C). This will ensure that your pie crust bakes evenly.
  2. Prepare the Pie Crust: If you’re using a store-bought pie crust, simply place it in a 9-inch pie dish. For a homemade crust, roll out the dough and place it in the pie dish. If you like, you can brush a small amount of butter on the bottom of the crust to prevent the filling from soaking into the dough.
  3. Assemble the Pie: Pour the prepared rhubarb custard mixture into the pie crust. Use a spatula to spread it evenly across the crust. The custard will set as it bakes, and the rhubarb will soften, creating a beautiful filling.
  4. Bake the Pie: Place the pie on the center rack of your preheated oven and bake for 45-50 minutes. The pie is done when the filling is set and slightly golden brown around the edges. You can check for doneness by inserting a knife into the center; if it comes out clean, the pie is ready.
  5. Cool the Pie: Allow the pie to cool to room temperature before serving. This allows the custard to firm up and makes slicing easier. The pie is best enjoyed slightly chilled, but you can also serve it warm.

For a delicious variation on classic rhubarb pie, you might also like Rhubarb Kuchen.

Pro Tips and Variations for Grandma’s Rhubarb Custard Pie

How to Customize the Pie

While this rhubarb custard pie recipe is delicious as is, there are a few ways you can personalize it to your taste:

  • Add Cinnamon or Nutmeg: For a warm, spiced flavor, sprinkle a little cinnamon or nutmeg into the custard mixture. This adds depth and complexity to the pie.
  • Incorporate Other Fruits: If you love fruity pies, try adding other fruits alongside the rhubarb. Strawberries pair especially well with rhubarb and will add a subtle sweetness to the pie. You can mix in fresh strawberries or even other fruits like blueberries or raspberries for a mixed berry version.
  • Use a Graham Cracker Crust: For a twist on the traditional pie, consider using a graham cracker crust instead of a regular pie crust. It adds a lovely crunch and enhances the flavor of the custard.

Make-Ahead Tips

If you’re preparing the pie for a special occasion, it’s easy to make it ahead of time. You can prepare the pie a day or two in advance, as it stores well in the refrigerator. After it’s cooled, simply cover it with plastic wrap or aluminum foil and refrigerate. When you’re ready to serve, just slice and enjoy.

For another make-ahead dish, check out High Protein No Sugar Monkey Bread, a delicious breakfast or snack option!

What Not to Do When Making Rhubarb Custard Pie

Common Mistakes to Avoid

  • Don’t Overfill the Pie Crust: When adding the custard mixture to the pie crust, be sure not to overfill it. The custard needs room to set while baking, and an overfilled pie may spill over in the oven.
  • Don’t Skip the Cooling Step: Let the pie cool completely before slicing. Cutting into it while it’s still hot can result in a runny filling.
  • Be Mindful of Baking Time: Make sure to keep an eye on the pie towards the end of the baking time. If the crust is getting too dark, you can cover the edges with aluminum foil to prevent burning.

For a savory option, try making Chicken Alfredo Monkey Bread for another delightful meal.

Grandma’s Rhubarb Custard Pie

How to Serve and Present Rhubarb Custard Pie

Garnishing Tips for the Perfect Slice

When serving your rhubarb custard pie, you can add a few garnishes for an extra special touch:

  • Whipped Cream: A dollop of freshly whipped cream is the perfect finishing touch for this dessert.
  • Powdered Sugar: Dust the top of the pie with powdered sugar for a simple yet elegant presentation.
  • Mint Leaves: For a pop of color, garnish with a few fresh mint leaves.

Essential Kitchen Tools for Making Rhubarb Custard Pie

To make the process of preparing this delicious pie as easy as possible, you’ll need the following kitchen tools:

  • 9-inch pie dish
  • Mixing bowls
  • Whisk or electric mixer
  • Knife for chopping rhubarb
  • Rolling pin (if making homemade pie crust)
  • Oven mitts

For a different pie variety, try making a Coconut Magic Custard Pie for another rich dessert option!

How to Store and Reheat Your Rhubarb Custard Pie

If you happen to have leftovers (though we doubt it!), storing and reheating your pie is easy. Place the pie in an airtight container and refrigerate for up to 3 days. When you’re ready to enjoy it again, simply reheat the slices in the microwave or oven. For best results, heat it in the oven at 350°F for about 10 minutes to preserve the texture.

Perfect Pairings for Rhubarb Custard Pie

While rhubarb custard pie is delicious on its own, it pairs wonderfully with several other treats. Consider serving it with a side of fresh fruit or a scoop of vanilla ice cream. For a complete dessert experience, try pairing it with Fried Strawberry Cheesecake Sandwiches for a decadent sweet bite.

Frequently Asked Questions About Rhubarb Custard Pie

Can I use frozen rhubarb for this recipe?

Yes, frozen rhubarb works well in this pie. Just make sure to thaw it thoroughly and drain any excess moisture before adding it to the custard mixture.

How can I make this recipe gluten-free?

To make the pie gluten-free, simply swap the all-purpose flour in the custard mixture with a gluten-free flour blend. You can also use a gluten-free pie crust.

Can I make this pie ahead of time?

Yes, you can make the pie a day in advance. Simply refrigerate it after it has cooled to room temperature.

Conclusion

Grandma’s Rhubarb Custard Pie is a timeless dessert that combines the tangy tartness of rhubarb with the smooth richness of custard. It’s simple to make, wonderfully delicious, and perfect for any occasion. Whether you’re looking for the best rhubarb recipes or a comforting dessert that everyone will love, this pie is sure to become a staple in your baking repertoire. So go ahead, bake this nostalgic dessert, and share it with your loved ones. They’ll be asking for seconds!

If you loved this recipe, don’t forget to share it with friends and family and subscribe to our blog for more rhubarb dessert recipes and other delicious ideas like Crispy Smashed Potato Salad and Reuben Balls with Spicy Thousand Island.

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Grandma’s Rhubarb Custard Pie Recipe

5-Star Grandma’s Rhubarb Custard PieGrandma’s Rhubarb Custard Pie Recipe – A Delicious Timeless Dessert


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  • Author: Merry
  • Total Time: 40–55 minutes
  • Yield: 1 (9‑inch) pie, about 8 servings 1x
  • Diet: Vegetarian

Description

A timeless, comforting dessert featuring tart chopped rhubarb folded into a sweet, egg‑flour custard, all encased in a tender, flaky homemade pastry—just like Grandma used to make.


Ingredients

Scale
  • 4 cups chopped fresh rhubarb
  • 3 large eggs
  • 1¼ cups granulated sugar
  • 3 tablespoons all‑purpose flour
  • ½ teaspoon salt
  • ⅔ cup evaporated milk (or milk)
  • 1 (9″) unbaked deep‑dish pie crust (homemade tender‑flake crust using 2 cups flour, ½ tsp salt, ½ cup cold butter, cold water)

Instructions

  1. Preheat oven to 350 °F.
  2. Partially blind‑bake the crust for ~10 min to set.
  3. In a bowl, whisk together eggs, sugar, flour, salt, and evaporated milk until smooth.
  4. Gently fold in chopped rhubarb.
  5. Pour the filling into the warm crust.
  6. If desired, top with pastry strips (lattice style) or leave open.
  7. Bake for 30–45 min until custard is set and golden on top.
  8. Cool until the filling fully sets before slicing.

Notes

  • Use frozen rhubarb? Thaw, drain, pat dry—toss with a tablespoon of flour to prevent excess liquid :contentReference[oaicite:1]{index=1}.
  • Custard pies must be refrigerated after cooling to prevent weeping :contentReference[oaicite:2]{index=2}.
  • Blind‑baking the crust helps seal it and avoids a soggy bottom :contentReference[oaicite:3]{index=3}.
  • Prep Time: 10 minutes
  • Cook Time: 30–45 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: North American

Nutrition

  • Serving Size: 1 slice (1/8 pie)
  • Calories: Approx. 250 kcal
  • Sugar: Approx. 30 g
  • Sodium: Approx. 150 mg
  • Fat: Approx. 10 g
  • Saturated Fat: Approx. 6 g
  • Carbohydrates: Approx. 40 g
  • Fiber: Approx. 2 g
  • Protein: Approx. 5 g
  • Cholesterol: Approx. 80 mg

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