Let me introduce you to a true delight with a perfect balance of tart and creamy—this Rhubarb Custard Pie Recipe is one of those timeless classics that effortlessly combines the vibrant tanginess of fresh rhubarb with a luscious, silky custard. Whether you’re a seasoned baker or trying your hand at pie-making for the first time, this recipe invites you to create a beautiful dessert that bursts with flavor, boasting a buttery crust that holds everything together like a dream. Trust me, once you try this Rhubarb Custard Pie Recipe, it will become a staple in your dessert rotation for celebrating seasons and sharing smiles.

Ingredients You’ll Need
These ingredients are wonderfully simple yet essential, each playing a unique role to create that perfect harmony of texture, taste, and appearance in your pie. From the tartness of rhubarb to the creamy custard base, the magic lies in their combination.
- Unbaked pie shell: Provides the crisp, golden foundation that holds the filling and adds a flaky texture.
- Chopped rhubarb (3 cups): Brings a tangy punch that brightens up the custard with natural acidity and color.
- Granulated sugar (1 1/4 cups): Balances the tartness of the rhubarb, ensuring a sweet, mellow bite every time.
- Eggs (3, beaten): Essential for setting the custard, eggs give the filling its structure and richness.
- Heavy whipping cream (1 cup): Creates the silky smooth custard texture and adds deep creaminess.
- Flour (3 tablespoons): Helps thicken the custard, ensuring it sets firmly without turning rubbery.
- Salt (1/2 teaspoon): Enhances the overall flavor by balancing sweetness and tartness within the filling.
How to Make Rhubarb Custard Pie Recipe
Step 1: Preheat the Oven
Start things off by preheating your oven to 400°F (204°C). This ensures a nice, even heat for setting both the crust and the custard filling properly, so you’ll get that beautifully baked pie with a golden base and perfectly cooked filling.
Step 2: Prepare the Pie Shell and Rhubarb
Take your unbaked pie shell and spread the chopped rhubarb evenly across its bottom. Make sure the rhubarb covers the entire base for a consistent burst of tartness in every bite. This layer will become the vibrant heart of your pie.
Step 3: Mix Custard Filling
In a separate mixing bowl, whisk together the granulated sugar, beaten eggs, heavy whipping cream, flour, and salt. The goal is a smooth, well-combined custard mixture that will cradle the rhubarb perfectly and bake into a silky, rich filling.
Step 4: Assemble Pie
Gently pour the custard mixture over the rhubarb in the pie shell, taking care to cover most of the fruit. This step ensures that once baked, the custard sets around the rhubarb, marrying tart and sweet in every forkful.
Step 5: First Baking Stage
Bake the pie at 400°F (204°C) for 10 minutes. This initial high heat kick-starts the cooking of the crust and beginning to set the filling, giving a solid base to build on.
Step 6: Second Baking Stage
Reduce the oven temperature to 350°F (177°C) and continue baking for 40 more minutes. The custard should be mostly set by now, although the center might still jiggle slightly—that’s perfect, as it will firm up completely as it cools.
Step 7: Cool and Serve
Allow your pie to cool at room temperature completely before placing it in the refrigerator to chill. This cooling period lets the custard fully set, so when you slice, you’ll get those beautiful clean pieces bursting with flavor.
How to Serve Rhubarb Custard Pie Recipe

Garnishes
Adding a scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream transforms this pie into an indulgent treat that’s just as stunning visually as it is delicious. You can also sprinkle a little ground cinnamon or nutmeg on top for a hint of warm spice that pairs amazingly well with the rhubarb’s natural tartness.
Side Dishes
This pie shines as a dessert on its own, but if you’re serving a full meal, consider pairing it with a light green salad or a small platter of fresh berries to keep your menu vibrant and balanced. A cup of hot tea or coffee is also a wonderful companion, cutting through the richness of the custard with each sip.
Creative Ways to Present
For a fun twist, serve smaller slices in elegant glass dessert dishes layered with whipped cream and fresh rhubarb for a deconstructed Rhubarb Custard Pie experience. Alternatively, cut bite-size pieces and garnish with fresh mint leaves and edible flowers to wow your guests with a pretty and sophisticated presentation.
Make Ahead and Storage
Storing Leftovers
Once cooled and refrigerated, your leftover pie should be tightly covered with plastic wrap or foil to keep it fresh. It will stay delicious for up to 3 days, making it a perfect make-ahead dessert for busy days when you want something homemade but hand-free.
Freezing
You can freeze this pie successfully by wrapping it well in plastic wrap and aluminum foil to protect from freezer burn. Store it in your freezer for up to 1 month. When you’re ready, thaw it overnight in the fridge for the best texture and flavor retention.
Reheating
To enjoy your Rhubarb Custard Pie Recipe warm, gently reheat in a conventional oven at 325°F (163°C) for about 10-15 minutes. Avoid microwaving as it may alter the custard’s texture. This way, you’ll keep the silky, creamy filling just right and the crust flaky.
FAQs
Can I use a homemade pie crust instead of store-bought?
Absolutely! A homemade crust adds a lovely personal touch and allows you to control ingredients. Just ensure it’s rolled and fitted well to avoid sogginess from the custard filling.
Is fresh rhubarb necessary or can I use frozen?
Fresh rhubarb is ideal because it maintains texture better and has a fresher taste, but frozen can work in a pinch. Thaw and drain any excess liquid before using to prevent a watery pie.
How do I know when the custard is fully baked?
The custard is done when the edges are set and the center has a slight jiggle but is not liquid. It will continue to firm as the pie cools and chills in the refrigerator.
Can I substitute heavy cream with milk?
Using milk instead of heavy cream will make the custard less rich and creamy. It’s possible, but for the best, silky texture and flavor, heavy cream is recommended.
What is the best way to serve this pie for a crowd?
Serve in slices chilled or at room temperature, accompanied by whipped cream and fresh fruit garnishes. Cutting the pie neatly is easier once it’s fully chilled to keep those elegant portions perfect.
Final Thoughts
This Rhubarb Custard Pie Recipe is one dessert that feels like a warm hug and a party all at once. It’s a beautiful marriage of vibrant rhubarb and velvety custard that’s both nostalgic and exciting. I truly encourage you to give this recipe a try—invite some friends or family, bake it with love, and enjoy every delightful bite together.
Print
Rhubarb Custard Pie Recipe
- Total Time: 1 hour 5 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
This Rhubarb Custard Pie combines the tartness of fresh rhubarb with a smooth, creamy custard filling baked in a flaky pie crust. It’s perfect for dessert lovers who enjoy a balance of sweet and tangy flavors in a classic homemade pie.
Ingredients
Pie
- 1 unbaked pie shell
- 3 cups chopped rhubarb
Custard Filling
- 1 1/4 cups granulated sugar
- 3 eggs, beaten
- 1 cup heavy whipping cream
- 3 tablespoons flour
- 1/2 teaspoon salt
Instructions
- Preheat the Oven: Preheat your oven to 400°F (204°C) to ensure the pie bakes evenly and the crust gets a good start on crisping.
- Prepare the Pie Shell and Rhubarb: Place the chopped rhubarb evenly across the bottom of the unbaked pie shell, spreading it out to cover the entire base evenly.
- Mix Custard Filling: In a separate bowl, whisk together the granulated sugar, beaten eggs, heavy whipping cream, flour, and salt until the mixture is smooth, fully combined, and free of lumps.
- Assemble Pie: Carefully pour the custard mixture over the rhubarb in the pie shell, making sure the rhubarb is mostly covered by the custard liquid for even baking.
- First Baking Stage: Bake the pie at 400°F (204°C) for 10 minutes to set the crust and start cooking the filling, creating a sturdy base.
- Second Baking Stage: Reduce the oven temperature to 350°F (177°C) and continue baking for an additional 40 minutes, or until the custard is mostly set. The center may still jiggle slightly but will firm up as the pie cools.
- Cool and Serve: Let the pie cool completely at room temperature. Once cooled, refrigerate the pie to fully set the custard before slicing and serving for best texture and flavor.
Notes
- Make sure to chop the rhubarb into uniform pieces to ensure even cooking.
- If you prefer a sweeter pie, you can increase the sugar slightly, but the rhubarb’s tartness balances well with the stated amount.
- Allow the pie to cool completely and chill before slicing to help the custard set properly and prevent runny slices.
- If using frozen rhubarb, thaw and drain excess liquid to avoid a soggy crust.
- For a decorative touch, you can brush the crust edges with an egg wash before baking to give a golden finish.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American