If you’re on the hunt for a showstopping dessert that tastes like a sweet, creamy bite of spring, the hubarb Custard Cake – Choose Your Pan Size is your new best friend. Whether you bake it in a classic 9×13 rectangle or a cozier 10-inch round, this cake combines three beautiful layers: soft, pillowy cake, tart rhubarb, and a dreamy blanket of vanilla-scented custard. Every forkful is a celebration of textures and flavors, making this dish the perfect centerpiece for brunches, potlucks, or any day you want to treat yourself.

Ingredients You’ll Need
Each ingredient for hubarb Custard Cake – Choose Your Pan Size is simple and easy to find, yet totally essential for that magical flavor and texture. Here’s a closer look at how these ingredients build the cake’s delicate balance of sweet, tart, and creamy.
- Butter, softened: This adds richness and flavor to the cake base, ensuring a tender crumb.
- Sugar: Sweetens both the cake and custard, enhancing the natural tartness of the rhubarb.
- Eggs: Provide structure to the cake base and create the dreamy, set custard layer on top.
- Vanilla extract: Adds a lovely aroma and depth of flavor to both cake and custard.
- All-purpose flour: Forms the backbone of the cake, giving structure without heaviness.
- Baking powder: Helps the cake layer rise into a soft, pillowy foundation.
- Salt: Brightens all the flavors and keeps the cake from tasting flat.
- Milk: Brings moisture and softness to the cake base, making it tender instead of dry.
- Fresh rhubarb: The star of the show! Brings bright tartness and gorgeous color—use fresh if you can, but frozen (well-patted dry) works too.
- Heavy cream: The key to a lush, creamy custard that sets perfectly over the rhubarb.
How to Make hubarb Custard Cake – Choose Your Pan Size
Step 1: Prep Your Pan and Oven
Begin by preheating your oven to 350°F and generously greasing your baking pan of choice: either a 9×13 rectangle or a 10-inch round (springform pans make unmolding a breeze!). Make sure every edge and corner is coated so nothing sticks—this will help your beautiful layers release perfectly later on.
Step 2: Make the Cake Base
In a mixing bowl, cream the softened butter and sugar together until pale and fluffy, which usually takes about three minutes. This step is crucial for a light, tender crumb in the base. Beat in the egg and vanilla, making sure everything is fully blended.
Step 3: Combine Dry Ingredients and Finish the Batter
In a separate bowl, whisk your flour, baking powder, and salt together. Add these dry ingredients to your butter mixture, alternating with the milk. Mix gently—just until everything is incorporated. You don’t want to over-mix; a little caution preserves that delicate cake texture!
Step 4: Spread the Batter
Scrape the batter into your prepared pan and spread it out into an even, thin layer. Don’t worry if it doesn’t seem like a lot—remember, the magic is in the layers! This base is designed to be more of a soft cushion than a thick cake.
Step 5: Add the Rhubarb
Sprinkle the chopped rhubarb over the cake batter in an even layer. Resist the urge to arrange it perfectly; random scatterings make for charming bursts of tartness in every slice of hubarb Custard Cake – Choose Your Pan Size.
Step 6: Make the Custard
Whisk together your eggs, heavy cream, sugar, and vanilla extract until completely smooth. For an extra silky finish, pour the mixture through a fine mesh strainer—this step is optional, but it makes your custard extra luscious.
Step 7: Pour and Bake
Slowly pour the custard over the rhubarb and cake batter. It may look like a lot, but trust in the process! Slide the pan into your oven. Bake for 45-50 minutes if you’re using the rectangle pan, or 40-45 minutes for the round pan. Your cake is ready when it’s golden and just set in the center—a gentle wiggle should show only the slightest jiggle.
Step 8: Cool and Serve
Resist the temptation to dive in right away! Let your hubarb Custard Cake – Choose Your Pan Size cool for at least 30 minutes to allow the layers to fully set. The reward for your patience? Perfect slices and a custard that holds its shape on your fork.
How to Serve hubarb Custard Cake – Choose Your Pan Size

Garnishes
Dress up each slice with a flourish of fresh whipped cream or a few curls of lemon zest. A dusting of powdered sugar elevates the presentation and adds a touch of sweetness that pairs beautifully with the tart rhubarb.
Side Dishes
This cake shines alongside a scoop of creamy vanilla ice cream or a bright, tangy berry compote. For a morning treat, serve it with a dollop of yogurt and a sprinkle of toasted almonds—you’ll love the contrast in flavors and textures.
Creative Ways to Present
Let your imagination run wild! Serve the hubarb Custard Cake – Choose Your Pan Size in elegant wedges with edible flowers for a spring tea, or cut into generous squares for an easy picnic dessert. Individual ramekins transform it into charming personal custard cakes—perfect for dinner parties.
Make Ahead and Storage
Storing Leftovers
Slide any leftover hubarb Custard Cake – Choose Your Pan Size into an airtight container and store it in the fridge for up to three days. The flavors actually deepen and mellow as the cake chills, making it delicious right out of the fridge.
Freezing
As tempting as it is to stash away a slice for later, this custard-based cake doesn’t freeze well—thawing tends to make the texture grainy and separates the custard. Enjoy it within a few days for the very best experience.
Reheating
If you prefer your cake a little warm, pop a slice in the microwave for 10-15 seconds. Alternatively, reheat in a low oven just until gently warmed through. The custard softens slightly, becoming beautifully creamy again.
FAQs
Can I use frozen rhubarb for this recipe?
Absolutely! If you’re using frozen rhubarb, just be sure to thaw and pat it completely dry with a paper towel—extra moisture can make the custard watery. The flavor and color will still pop.
What’s the difference between baking in a rectangle versus a round pan?
The round version of the hubarb Custard Cake – Choose Your Pan Size is a bit thicker and more custard-heavy, while the rectangle pan gives you thinner layers and more cake per bite. Both are delicious, so choose whichever suits your mood or occasion.
Can I make this recipe gluten-free?
Yes! Simply substitute your favorite all-purpose gluten-free flour blend in place of regular flour. Just be sure the blend includes xanthan gum or another binder for best texture.
How do I know when the custard is fully set?
Look for a golden top and a gentle jiggle in the center when you shake the pan. The edges should be firm, but the middle should wobble just slightly—don’t overbake, as the custard will continue to set as it cools.
Is it possible to make this ahead of time for a party?
Definitely! The hubarb Custard Cake – Choose Your Pan Size is actually even better after a few hours in the fridge, so feel free to bake it a day ahead. Just cover and chill until ready to serve.
Final Thoughts
I can’t recommend hubarb Custard Cake – Choose Your Pan Size enough. It’s the kind of recipe you’ll want to return to every spring, when rhubarb is at its peak and you’re craving something that feels both nostalgic and fresh. Give it a try, experiment with pan sizes, and watch how quickly it disappears from the table!
Printhubarb Custard Cake – Choose Your Pan Size Recipe
A delightful and comforting Rhubarb Custard Cake that combines layers of tender cake, tart rhubarb, and creamy custard. Perfect for spring gatherings or a sweet treat any time of year.
- Prep Time: 20 minutes
- Cook Time: 45-50 minutes
- Total Time: 1 hour 10 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Cake Base:
- 1/3 cup butter, softened (use 1/4 cup for round pan)
- 1/2 cup sugar (use 1/3 cup for round pan)
- 1 egg
- 1 teaspoon vanilla extract (use 3/4 tsp for round pan)
- 1 cup all-purpose flour (use 2/3 cup for round pan)
- 1 1/2 teaspoons baking powder (use 1 tsp for round pan)
- 1/2 teaspoon salt (use 1/3 tsp for round pan)
- 1/2 cup milk (use 1/3 cup for round pan)
Filling:
- 3 cups fresh rhubarb, chopped into 1/2-inch pieces (use 2 cups for round pan)
Custard:
- 3 large eggs (use 2 eggs for round pan)
- 1 1/2 cups heavy cream (use 1 cup for round pan)
- 3/4 cup sugar (use 1/2 cup for round pan)
- 1 teaspoon vanilla extract (use 3/4 tsp for round pan)
Instructions
- Preheat Oven: Preheat the oven to 350°F and grease a 9×13 rectangle or 10-inch round pan.
- Make the Cake Base: Cream butter and sugar, then beat in egg and vanilla. In a separate bowl, whisk flour, baking powder, and salt. Add to butter mixture alternating with milk. Spread batter in prepared pan.
- Add Rhubarb: Scatter chopped rhubarb over the batter.
- Prepare Custard: Whisk eggs, cream, sugar, and vanilla until smooth. Strain for extra smoothness.
- Pour Custard: Carefully pour custard over the rhubarb and cake base.
- Bake: Bake for 45-50 minutes for rectangle pan or 40-45 minutes for round pan until set and golden. Let cool before serving.
Notes
- Round version will be thicker and more custard-like than rectangle
- Pat frozen rhubarb dry if using instead of fresh
- Check the custard for doneness by observing a slight wobble when done
Nutrition
- Serving Size: 1 slice
- Calories: 240
- Sugar: 18g
- Sodium: 190mg
- Fat: 14g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 95mg