Rhubarb Custard Bars are a delightful treat that combines a rich, gooey custard with a buttery shortbread-like crust and tart rhubarb. These bars make for an excellent dessert for family gatherings, picnics, or just a sweet indulgence at home. Their unique combination of flavors and textures will surely impress anyone who tries them.
Why You’ll Love This Recipe
- Easy to Make: The straightforward process allows even novice bakers to create these delicious bars effortlessly.
- Delicious Flavor: The combination of creamy custard and tart rhubarb creates a perfect balance that is both refreshing and satisfying.
- Versatile Serving Options: Perfect for any occasion, whether it’s a picnic, family dinner, or simply enjoying with coffee.
- Make Ahead Friendly: These bars store well in the fridge, making them an ideal make-ahead dessert.
- A Crowd-Pleaser: With their unique flavor profile, these bars are sure to impress your friends and family.
Tools and Preparation
Before diving into making Rhubarb Custard Bars, gather your essential tools. Having the right equipment can make the process smoother and more enjoyable.
Essential Tools and Equipment
- 13×9-inch baking pan
- Mixing bowls
- Whisk
- Electric mixer (optional)
- Knife for chopping rhubarb
Importance of Each Tool
- 13×9-inch baking pan: The perfect size for baking these bars evenly while allowing them to set properly.
- Mixing bowls: Essential for combining ingredients without creating a mess.
- Whisk: Helps in achieving a smooth custard by ensuring all ingredients are well combined.
Ingredients
For the Crust
- 2 cups all-purpose flour
- 1/4 cup sugar
- 1 cup cold butter
For the Filling
- 2 cups sugar
- 7 tablespoons all-purpose flour
- 1 cup heavy whipping cream
- 3 large eggs, beaten
- 5 cups finely chopped fresh or frozen rhubarb, thawed and drained
For the Topping
- 6 ounces cream cheese, softened
- 1/2 cup sugar
- 1/2 teaspoon vanilla extract
- 1 cup heavy whipping cream, whipped
How to Make Rhubarb Custard Bars
Step 1: Preheat the Oven
Preheat your oven to 350°F. While it’s heating up, grease your 13×9-inch baking pan to prepare it for the crust.
Step 2: Prepare the Crust
In a mixing bowl, combine the following:
1. Combine 2 cups all-purpose flour and 1/4 cup sugar.
2. Cut in 1 cup cold butter until the mixture resembles coarse crumbs.
3. Press this mixture into the prepared pan.
4. Bake in the preheated oven for 10 minutes until lightly golden.
Step 3: Make the Filling
While the crust is baking, prepare the filling:
1. In another bowl, mix together 2 cups sugar and 7 tablespoons flour.
2. Whisk in 1 cup heavy whipping cream, followed by 3 large beaten eggs.
3. Finally, fold in 5 cups finely chopped rhubarb.
Step 4: Combine and Bake Again
Pour the filling over the baked crust:
1. Spread it evenly across the crust.
2. Bake at 350°F for about 40-45 minutes or until the custard is set.
3. Once done, allow it to cool completely before adding the topping.
Step 5: Prepare the Topping
For a creamy topping:
1. Beat together 6 ounces softened cream cheese, 1/2 cup sugar, and 1/2 teaspoon vanilla extract until smooth.
2. Gently fold in 1 cup whipped heavy cream.
3. Spread this mixture over cooled bars.
Step 6: Chill Before Serving
Cover your bars and refrigerate them until firm enough to cut:
1. Let them chill for about 1 hour.
2. Slice into bars and enjoy chilled!
These Rhubarb Custard Bars are best served chilled and are sure to be a hit at any gathering!
How to Serve Rhubarb Custard Bars
Rhubarb Custard Bars are a delightful treat that can be enjoyed in various ways. These bars are not only delicious but also versatile, making them perfect for different occasions. Here are some serving suggestions to enhance your dessert experience.
With Fresh Whipped Cream
- A dollop of freshly whipped cream adds a light and airy texture that complements the rich custard.
Accompanied by Vanilla Ice Cream
- Serving these bars warm with a scoop of vanilla ice cream creates a delightful contrast between temperatures and flavors.
Drizzled with Caramel Sauce
- A drizzle of caramel sauce over the top elevates the sweetness and adds a beautiful presentation.
Paired with Fresh Berries
- Fresh strawberries or raspberries on the side add a fruity brightness that balances the tartness of the rhubarb.
Garnished with Mint Leaves
- A few fresh mint leaves not only enhance the visual appeal but also add a refreshing herbal note.
Served at Room Temperature
- Allowing these bars to sit at room temperature before serving can enhance their flavor and texture.

How to Perfect Rhubarb Custard Bars
To achieve the best results when making Rhubarb Custard Bars, consider these helpful tips. Each suggestion will help you create a more delightful dessert.
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Use fresh rhubarb: Fresh rhubarb provides better flavor and texture than frozen. If using frozen, ensure it is fully thawed and drained.
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Chill before serving: Allowing the bars to chill for at least an hour after preparation helps firm them up, making cutting easier.
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Don’t overbake: Keep an eye on the baking time; overbaking can result in a dry custard layer. It should be set but still slightly jiggly in the center.
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Customize toppings: Feel free to experiment with different toppings like crushed nuts or chocolate shavings for added texture and flavor.
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Cut cleanly: Use a sharp knife dipped in hot water for clean cuts when slicing your bars, ensuring they look as good as they taste.
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Store properly: Keep leftovers covered in the refrigerator to maintain freshness and prevent drying out.
Best Side Dishes for Rhubarb Custard Bars
Rhubarb Custard Bars pair beautifully with several side dishes that complement their flavors. Here are some tasty options to consider:
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Classic Cheesecake: The creamy richness of cheesecake pairs well with the tartness of rhubarb.
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Fruit Salad: A refreshing mix of seasonal fruits can balance the sweetness of your dessert.
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Pecan Pie: The nutty flavors and textures of pecan pie provide a delicious contrast to rhubarb’s tartness.
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Chocolate Mousse: This light and airy dessert adds decadence without overwhelming your palate.
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Apple Crisp: The warm, spiced flavors of apple crisp create a wonderful harmony alongside rhubarb bars.
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Lemon Sorbet: A zesty sorbet offers a refreshing palate cleanser that complements the rich custard.
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Shortbread Cookies: Light and buttery shortbread makes for an excellent accompaniment or snack alongside your bars.
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Coffee or Tea: Serve with a warm cup of coffee or tea to enhance the overall dessert experience and provide comfort.
Common Mistakes to Avoid
When making Rhubarb Custard Bars, it’s easy to overlook some critical steps. Here are common mistakes to watch out for:
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Skipping the chilling time: Allowing the bars to chill is essential for setting the custard properly. Rushing this step may result in a gooey texture instead of firm bars.
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Not draining rhubarb adequately: If using frozen rhubarb, ensure it’s thoroughly thawed and drained. Excess moisture can make the filling soggy and impact the overall flavor.
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Overbaking the custard: Keeping an eye on the baking time is crucial. Overbaking can lead to a tough custard layer that lacks creaminess. Aim for a slight jiggle when checking for doneness.
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Using warm butter: When making the crust, ensure the butter is cold. Warm butter will not create the flaky texture needed for a good base.
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Ignoring ingredient temperatures: For best results, ensure eggs and cream cheese are at room temperature before mixing. This helps ingredients blend smoothly and avoids lumps.
Storage & Reheating Instructions
Refrigerator Storage
- Store Rhubarb Custard Bars in an airtight container.
- They can last up to 5 days in the refrigerator.
- Make sure to keep them chilled until serving for optimal taste.
Freezing Rhubarb Custard Bars
- Wrap individual bars in plastic wrap or aluminum foil.
- Place wrapped bars in a freezer-safe container or bag.
- They can be frozen for up to 3 months; just remember to label them!
Reheating Rhubarb Custard Bars
- Oven: Preheat your oven to 350°F. Place bars on a baking sheet and heat for about 10-15 minutes until warmed through.
- Microwave: Heat one bar at a time on medium power for 30 seconds, checking until warm.
- Stovetop: Place bars in a skillet over low heat with a lid on. Heat gently for about 5 minutes, checking frequently.
Frequently Asked Questions
Here are some common questions regarding Rhubarb Custard Bars:
Can I use frozen rhubarb for Rhubarb Custard Bars?
Yes, you can! Just make sure to thaw and drain it thoroughly before adding it to your filling.
How do I know when my Rhubarb Custard Bars are done?
The custard should be set but still slightly jiggly in the center when you take them out of the oven. It will firm up as it cools.
What can I serve with Rhubarb Custard Bars?
These bars pair wonderfully with whipped cream or vanilla ice cream, enhancing their rich flavors and providing a delightful contrast.
Can I customize my Rhubarb Custard Bars?
Absolutely! Feel free to add spices like cinnamon or nutmeg, or mix in strawberries or blueberries for added flavor.
How should I store leftover Rhubarb Custard Bars?
Store them in an airtight container in the refrigerator where they will stay fresh for about 5 days.
Final Thoughts
Rhubarb Custard Bars are a delightful dessert that combines tartness with sweetness, making them perfect for any gathering or family meal. Their creamy texture and shortbread crust create a balance that everyone loves. You can easily customize these bars by adding different fruits or spices, ensuring they remain versatile and appealing every time you make them. Give this recipe a try—you won’t be disappointed!
Rhubarb Custard Bars
- Total Time: 1 hour 15 minutes
- Yield: About 12 servings 1x
Description
Rhubarb Custard Bars are a deliciously unique dessert that blends the tartness of fresh rhubarb with a luscious custard filling and a buttery shortbread crust. Perfect for any occasion, these bars offer a delightful balance of flavors and textures that will impress your family and friends. Whether you’re hosting a picnic, enjoying a family dinner, or simply craving something sweet at home, Rhubarb Custard Bars are sure to satisfy. They can be made ahead of time and stored in the fridge, making them an ideal treat for busy bakers. Serve them chilled with whipped cream or vanilla ice cream for an extra special touch!
Ingredients
- 2 cups all-purpose flour
- 1/4 cup sugar
- 1 cup cold butter
- 2 cups sugar (for filling)
- 7 tablespoons all-purpose flour (for filling)
- 1 cup heavy whipping cream (for filling)
- 3 large eggs, beaten
- 5 cups finely chopped rhubarb
- 6 ounces cream cheese, softened
- 1/2 cup sugar (for topping)
- 1/2 teaspoon vanilla extract
- 1 cup heavy whipping cream (whipped for topping)
Instructions
- Preheat your oven to 350°F and grease a 13×9-inch baking pan.
- For the crust: In a bowl, mix flour and sugar, then cut in cold butter until crumbly. Press into the pan and bake for 10 minutes until lightly golden.
- For the filling: In another bowl, mix sugar and flour; whisk in heavy cream and beaten eggs. Fold in chopped rhubarb, then pour over the baked crust.
- Bake at 350°F for about 40-45 minutes until set but slightly jiggly in the center. Cool completely.
- For the topping: Beat cream cheese with sugar and vanilla until smooth; fold in whipped cream. Spread over cooled bars.
- Chill for about an hour before slicing into bars.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 330
- Sugar: 26g
- Sodium: 125mg
- Fat: 22g
- Saturated Fat: 12g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 80mg




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