If you’re looking for a delightful dessert that’s both comforting and refreshingly tangy, this Crustless Rhubarb Custard Pie Recipe is exactly what you need to try next. Imagine tender chunks of rhubarb nestled in a smooth, creamy custard that bakes to a delicate golden finish without the fuss of a pie crust. It’s light yet satisfying, perfectly balancing sweetness with just the right hint of tartness. Whether you’re a rhubarb lover or curious to add a new twist to your dessert repertoire, this pie delivers flavor and simplicity in every bite.

Ingredients You’ll Need
Gathering these simple, everyday ingredients is the first step to creating this wonderfully textured pie. Each element plays a crucial role, from the fresh rhubarb’s tangy punch to the creamy custard that holds everything together.
- 3 cups fresh rhubarb, diced: Provides natural tartness and vibrant color to brighten the pie.
- 1/3 cup all-purpose flour (or gluten-free alternative): Helps thicken the custard and ensure a perfect set without a crust.
- 3/4 cup granulated sugar: Balances the tartness of the rhubarb with sweet richness.
- 1/2 teaspoon baking powder: Adds a light lift to keep the custard from becoming too dense.
- 1/2 teaspoon salt: Enhances the overall flavors and prevents the pie from tasting flat.
- 4 large eggs: The binding agent that gives the custard its silky texture.
- 1 tablespoon vanilla extract: Infuses warmth and depth into the custard base.
- 1 cup milk: Adds creaminess and moisture to the pie.
- 1 teaspoon butter (for greasing the pie plate): Prevents sticking and adds a subtle richness to the edges.
How to Make Crustless Rhubarb Custard Pie Recipe
Step 1: Prepare Your Oven and Rhubarb
Start by preheating your oven to 375°F (190°C) so it’s perfectly hot when your pie is ready to bake. While the oven warms up, wash and dice your fresh rhubarb into small, even pieces for consistent baking and a beautiful texture throughout the pie.
Step 2: Grease the Pie Plate and Layer Rhubarb
Rub the softened butter all over the bottom and sides of a 9-inch pie plate to make sure nothing sticks as it bakes. Evenly spread out the diced rhubarb in the pie plate, creating a tasty bed that the custard will envelop.
Step 3: Blend the Custard Mixture
In a blender, combine the flour, sugar, baking powder, salt, eggs, vanilla extract, and milk. Blend on medium speed for 1 to 2 minutes until the mixture is silky smooth and completely blended. This ensures a creamy, lump-free custard that will set beautifully.
Step 4: Bake Until Perfectly Set
Carefully pour your custard mixture over the rhubarb in the pie plate. Transfer the dish to your preheated oven and bake for about 40 minutes. You’ll know it’s done when the top turns a light golden shade and the center jiggles slightly—a sign that it will firm up perfectly as it cools.
Step 5: Cool and Serve
Remove the pie from the oven and allow it to rest for 10 to 15 minutes. This resting time helps the custard fully set, making it easy to slice and enjoy. Serve the pie warm, at room temperature, or chilled—each temperature brings out a different charm.
How to Serve Crustless Rhubarb Custard Pie Recipe

Garnishes
Add a little extra flair by topping your sliced pie with a dollop of whipped cream or a sprinkle of powdered sugar. Fresh mint leaves or a hint of lemon zest can also brighten each serving, enhancing the rhubarb’s natural tang.
Side Dishes
This pie pairs wonderfully with a scoop of vanilla ice cream or a drizzle of honey for an indulgent touch. For a lighter option, a fresh berry salad or a cup of herbal tea creates a well-rounded dessert experience.
Creative Ways to Present
For special occasions, serve the pie in individual ramekins for a charming personal touch. Alternatively, dust the top with cinnamon or nutmeg before baking to introduce subtle spice notes that complement the rhubarb perfectly.
Make Ahead and Storage
Storing Leftovers
Store any leftover Crustless Rhubarb Custard Pie Recipe covered in the refrigerator for up to 3 days. Keeping it chilled preserves the custard’s texture and flavors, so you can enjoy second helpings just as much as the first.
Freezing
If you want to save some for later, the pie freezes well. Wrap it tightly in plastic wrap and then foil to prevent freezer burn, and freeze for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating
To bring back that freshly baked warmth, reheat your pie slices gently in the oven at 325°F (160°C) for about 10-15 minutes. Avoid the microwave if you can, as it can change the custard’s texture, making it less silky.
FAQs
Can I use frozen rhubarb in this pie?
Yes, you can use frozen rhubarb, but make sure to thaw and drain it well before using to avoid excess moisture that might affect the custard’s consistency.
Is there a gluten-free option for this recipe?
Absolutely! Substitute the all-purpose flour with a gluten-free flour blend to keep the pie just as delicious and safe for gluten-sensitive eaters.
Can I use a different type of milk?
Yes, whole milk is recommended for the creamiest texture, but you can substitute with almond, oat, or soy milk for a dairy-free version. Just be mindful that it might slightly alter the pie’s flavor.
What if I don’t have a blender?
You can whisk the dry and wet ingredients thoroughly by hand to combine, but blending helps achieve a perfectly smooth custard. A hand mixer or food processor works as great alternatives too.
How do I know when the pie is fully baked?
Look for a lightly golden top and a center that jiggles slightly but doesn’t look liquid. The custard will continue to firm as it cools, so a little wobble is perfect.
Final Thoughts
Trust me, once you try this Crustless Rhubarb Custard Pie Recipe, you’ll keep coming back for its unique combination of tangy rhubarb and creamy custard magic—all without the fuss of a crust. It’s a simple yet wonderful way to celebrate seasonal flavors with family and friends. So warm up your oven, gather those ingredients, and let this pie become your next beloved homemade treat!
Print
Crustless Rhubarb Custard Pie Recipe
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 8 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Crustless Rhubarb Custard Pie is a delightful springtime dessert that combines the tartness of fresh rhubarb with a smooth, vanilla-infused custard. Baked without a traditional crust, it offers a light yet satisfying treat perfect for any occasion. The pie features a naturally creamy texture with a slightly golden top and sets beautifully as it cools, making it easy to serve warm, at room temperature, or chilled.
Ingredients
Pie Ingredients
- 3 cups fresh rhubarb, diced
- 1/3 cup all-purpose flour (or gluten-free alternative)
- 3/4 cup granulated sugar
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 4 large eggs
- 1 tablespoon vanilla extract
- 1 cup milk
- 1 teaspoon butter (for greasing the pie plate)
Instructions
- Preheat and Prepare Rhubarb: Preheat your oven to 375°F (190°C). Wash and dice the rhubarb into small, even pieces to ensure consistent cooking.
- Grease the Pie Plate and Arrange Rhubarb: Rub the softened butter all over the bottom and sides of a 9-inch pie plate to prevent sticking. Spread the diced rhubarb evenly across the bottom of the dish for an even layer of fruit.
- Blend Custard Mixture: In a blender, combine the flour, granulated sugar, baking powder, salt, eggs, vanilla extract, and milk. Blend on medium speed for 1 to 2 minutes until the mixture is completely smooth and well combined to create a smooth custard base.
- Pour and Bake: Carefully pour the blended custard mixture over the rhubarb in the pie plate. Place the pie in the preheated oven and bake for about 40 minutes. The pie is done when the top is lightly golden and the center has a slight jiggle, indicating it will continue to set as it cools.
- Cool and Serve: Remove the pie from the oven and let it rest for 10 to 15 minutes before slicing. This resting time allows the custard to firm up properly. Serve warm, at room temperature, or chilled according to your preference.
Notes
- Use fresh rhubarb for best flavor and texture; frozen rhubarb is not recommended as it may release excess water.
- The pie is naturally gluten-free if you substitute a gluten-free flour blend for the all-purpose flour.
- The slight jiggle in the center after baking is normal; the custard will firm up as it cools.
- To prevent sticking, ensure the pie plate is well greased with butter.
- This pie can be stored covered in the refrigerator for up to 3 days.

