As the first hints of spring begin to blossom, the vibrant, tangy flavor of rhubarb beckons me to the kitchen. I stumbled upon this Rhubarb and Ginger Custard Dump Cake during a leisurely afternoon of recipe experimentation, and it’s quickly become a staple in my home. The combination of sweet and tart rhubarb, complemented by a warm ginger kick, creates a symphony of flavors that dances on the palate. This dessert might look indulgent, but the best part? It’s incredibly easy to whip up, making it perfect for those spontaneous get-togethers or cozy family dinners. Just mix, pour, and bake, and you’ll have a delightful treat that impresses every time! Let’s dive into this delicious and family-friendly recipe that makes everyone ask for seconds.

Why will you love this Rhubarb and Ginger Custard Dump Cake?
Irresistibly Easy: This dump cake requires minimal effort—just mix, pour, and bake!
Flavor Fusion: The warm notes of ginger beautifully complement the tartness of rhubarb, creating a flavor experience that is both refreshing and comforting.
Crowd-Pleasing Delight: This cake is sure to impress guests during any gathering; it’s a true showstopper on any dessert table.
Tender Texture: With its soft, custardy center, it melts in your mouth, making each bite a joy to savor.
Versatile Dessert: Serve it warm on its own, or elevate it with a scoop of vanilla ice cream or a dollop of whipped cream for an extra treat.
Rhubarb and Ginger Custard Dump Cake Ingredients
For the Cake Base
• Rhubarb – Fresh, vibrant stalks provide that wonderful tartness essential to balancing the sweetness.
• Granulated Sugar – Sweetens the dish; adjust according to the rhubarb’s natural tartness.
• All-Purpose Flour – Forms the sturdy base for your cake; measure accurately for the best texture.
• Unsalted Butter – Adds rich flavor and moisture; make sure it’s softened for easy mixing.
• Eggs – Use large eggs to provide binding and contribute to the rich texture of your custard.
• Milk – Whole milk enhances the creaminess; feel free to substitute almond or oat milk for a dairy-free version!
For the Custard Filling
• Ground Ginger – Infuses a warm spice that beautifully complements the rhubarb; fresh ginger can be used for an extra kick.
• Baking Powder – Ensure it’s fresh to achieve the perfect rise in this delightful Rhubarb and Ginger Custard Dump Cake.
• Vanilla Extract – Enhances the overall flavor profile, making each bite irresistible.
• Salt – Just a pinch balances and brightens the sweetness of the dessert.
Feel free to mix and match with your favorite ingredients to make this Rhubarb and Ginger Custard Dump Cake truly your own!
How to Make Rhubarb and Ginger Custard Dump Cake
- Preheat your oven to 350°F (175°C) and prepare a 9×13 inch baking dish by greasing it lightly. This step ensures easy release of the cake once baked.
- Combine the dry ingredients by whisking together all-purpose flour, granulated sugar, baking powder, and salt in a large mixing bowl. The blending of these ingredients sets a strong foundation for your cake.
- Mix in the wet components. Add in the softened unsalted butter and large eggs, then pour in the whole milk. Stir until the batter is just combined; don’t worry about lumps—that’s okay!
- Fold in the chopped rhubarb and ground ginger. This is where the magic happens—the tartness from the rhubarb and the warm kick from ginger create an irresistible combo!
- Pour the batter evenly into the greased baking dish. Don’t fret about being perfect; it’s all about a rustic charm with this dump cake!
- Bake for 40-45 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean. Your kitchen will smell heavenly during this time!
- Cool slightly before serving, but it’s delightful warm or at room temperature. Top with your favorite scoop of vanilla ice cream or a dollop of whipped cream for an indulgent finish.
Optional: Dust with powdered sugar for a lovely presentation.
Exact quantities are listed in the recipe card below.

How to Store and Freeze Rhubarb and Ginger Custard Dump Cake
Fridge: Keep leftover cake in an airtight container for up to 3 days to maintain freshness and moisture.
Freezer: Wrap slices tightly in plastic wrap and foil, or use freezer-safe bags. The cake can be frozen for up to 3 months.
Thawing: To enjoy your frozen Rhubarb and Ginger Custard Dump Cake, thaw overnight in the fridge or at room temperature for a couple of hours before serving.
Reheating: Warm individual slices in the microwave for about 20-30 seconds, or until just heated through, to bring back that freshly-baked taste.
What to Serve with Rhubarb and Ginger Custard Dump Cake?
Savor the delightful simplicity of this dessert by pairing it with the perfect accompaniments to elevate your culinary experience.
- Vanilla Ice Cream: The creamy richness perfectly balances the tangy rhubarb, creating a delightful contrast that enhances every bite.
- Fresh Whipped Cream: Light and airy, it adds a luscious touch that complements the custardy texture while providing a subtle sweetness.
- Chilled Sweet Tea: A refreshing drink option that pairs beautifully with the warm spices, offering a mellow contrast to the tartness of the cake.
- Custard Sauce: Drizzling warm vanilla custard over the top adds an extra layer of creaminess that intensifies the flavor experience.
- Berry Compote: A mix of strawberries and blueberries cooked down into a tangy sauce provides vibrant color and a burst of freshness, making your dessert even more irresistible.
- Ginger Tea: For a warming experience, sip on ginger tea; it harmonizes with the cake’s spices and enhances the overall flavor profile.
This array of delightful pairings not only complements the Rhubarb and Ginger Custard Dump Cake but also transforms a simple dessert into an inviting celebration of flavors. Enjoy your culinary adventure!
Expert Tips for Rhubarb and Ginger Custard Dump Cake
- Fresh Ingredients: Always use fresh rhubarb and ginger for maximum flavor. Old ingredients can dull the cake’s vibrant taste.
- Mixing Matters: Avoid overmixing the batter to keep your cake tender. A few lumps are okay—this is a dump cake after all!
- Perfect Baking Time: Keep an eye on the cake during baking. If the top browns too quickly, cover it with foil to prevent burning while the center cooks through.
- Serving Temperature: This Rhubarb and Ginger Custard Dump Cake is delightful both warm and at room temperature, making it versatile for any occasion.
- Storage Tips: Leftovers can be kept in an airtight container in the fridge for up to three days. Reheat gently in the microwave for a quick treat!
Rhubarb and Ginger Custard Dump Cake Variations
Feel free to let your creativity shine as you customize this delightful dessert with these scrumptious tweaks!
- Fruit Swaps: Substitute rhubarb with strawberries or peaches to explore new flavor profiles. Each fruit adds its unique twist, transforming the cake into a different delightful treat!
- Ginger Kick: Increase the ground ginger or add freshly grated ginger for an extra punch if you’re a fan of warm spices. The more ginger, the merrier the zing in every bite!
- Nutty Crunch: Fold in some chopped walnuts or pecans for a satisfying crunch. This will not only add texture but also elevate the nutty flavor that beautifully complements the fruity cake.
- Dairy-Free Delight: Use almond or oat milk instead of whole milk for a dairy-free version. The cake will still be creamy and delicious without any dairy!
- Gluten-Free Option: Replace all-purpose flour with a gluten-free blend to satisfy gluten sensitivities without sacrificing texture or flavor. Your gluten-free friends will be delighted!
- Coconut Twist: Incorporate shredded coconut into the batter for a tropical flair. This addition will add both flavor and a delightful chewiness to every slice.
- Spicy Blend: Mix in a pinch of nutmeg or cinnamon to pair beautifully with ginger. These spices will create a warm, comforting aroma that will make your kitchen feel like a cozy haven.
- Chocolate Drizzle: For a decadent touch, drizzle melted chocolate over the cooled cake. The rich flavors of chocolate combined with the tartness of rhubarb create an irresistible mix!

Rhubarb and Ginger Custard Dump Cake Recipe FAQs
What type of rhubarb should I use?
Always choose fresh, vibrant stalks of rhubarb that are firm to the touch. Avoid stalks that have dark spots or are too limp, as they might not provide the best flavor or texture in your Rhubarb and Ginger Custard Dump Cake. Look for those with a bright, appealing color to guarantee that sweet and tart balance.
How should I store leftover custard dump cake?
To keep your leftover Rhubarb and Ginger Custard Dump Cake fresh, store it in an airtight container in the refrigerator. It will stay delicious for up to 3 days. If you want to keep it for longer, you can wrap it tightly in plastic wrap and foil, or place it in a freezer-safe bag, allowing you to enjoy it for up to 3 months.
Can I freeze the Rhubarb and Ginger Custard Dump Cake?
Absolutely! To freeze your cake, wrap individual slices tightly in plastic wrap and then in foil, or use freezer-safe bags to prevent freezer burn. When you’re ready to enjoy, simply thaw the slices overnight in the fridge or at room temperature for a couple of hours, then reheat gently in the microwave for about 20-30 seconds for that freshly-baked taste.
What are some common issues when making dump cakes?
One common issue is overmixing the batter, which can make your cake dense rather than light and tender. Just mix until the ingredients are combined, and embrace those lumps! Additionally, if your cake browns too quickly, cover it loosely with aluminum foil halfway through baking to prevent burning while the inside cooks fully.
Is this recipe suitable for people with dietary restrictions?
Yes, you can modify the Rhubarb and Ginger Custard Dump Cake to fit various dietary needs! For a dairy-free version, simply substitute whole milk with almond or oat milk. If there are anyone with nut allergies in your group, ensure you use a milk option that’s safe for them.
Can dogs eat rhubarb?
It’s important to note that rhubarb can be toxic to dogs, so please keep this delicious dessert away from your furry friends. Always consult a veterinarian when in doubt about what human foods are safe for pets.

Irresistibly Easy Rhubarb and Ginger Custard Dump Cake Delight
Equipment
- Oven
- Mixing bowl
- Whisk
- 9x13-inch baking dish
Ingredients
For the Cake Base
- 4 cups chopped rhubarb Fresh, vibrant stalks
- 1 cup granulated sugar Adjust according to tartness
- 2 cups all-purpose flour Measure accurately
- 1/2 cup unsalted butter Softened for easy mixing
- 2 large eggs For binding
- 1 cup whole milk Can substitute with almond or oat milk
For the Custard Filling
- 1 tablespoon ground ginger Or use fresh ginger for an extra kick
- 1 tablespoon baking powder Ensure freshness
- 2 teaspoons vanilla extract
- 1/2 teaspoon salt Just a pinch
Instructions
Directions
- Preheat your oven to 350°F (175°C) and prepare a 9x13 inch baking dish by greasing it lightly.
- Combine the dry ingredients by whisking together all-purpose flour, granulated sugar, baking powder, and salt in a large mixing bowl.
- Mix in the wet components: add softened unsalted butter and large eggs, then pour in whole milk. Stir until just combined.
- Fold in the chopped rhubarb and ground ginger.
- Pour the batter evenly into the greased baking dish.
- Bake for 40-45 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean.
- Cool slightly before serving, but it’s delightful warm or at room temperature.
Notes
Nutrition




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