My Rhubarb Cake recipe is a classic ~ the kind your grandma made, if you were lucky. It’s packed with jammy bits of sweet/tart rhubarb and it’s officially my favorite way to start the day. This delightful cake is perfect for breakfast, brunch, or as a light dessert. With its moist texture and zesty flavor, it’s sure to impress family and friends on any occasion.
Why You’ll Love This Recipe
- Easy to Make: This Rhubarb Cake comes together in just over an hour, making it a quick choice for busy mornings or gatherings.
- Delicious Flavor: The combination of sweet and tart rhubarb creates a unique taste that pairs wonderfully with coffee or tea.
- Versatile Serving Options: Enjoy it warm with a dollop of whipped cream or at room temperature as a snack throughout the day.
- Perfect for Spring: This cake showcases fresh rhubarb, making it ideal for spring celebrations like Easter or Mother’s Day.
- Crowd-Pleaser: With its delightful taste and appealing texture, this cake is sure to be a hit with both kids and adults alike.
Tools and Preparation
Before you begin baking your Rhubarb Cake, gather your tools. Having everything ready will make the process smooth and enjoyable.
Essential Tools and Equipment
- Stand mixer or electric beaters
- 9×9 square baking pan
- Mixing bowls
- Whisk
- Rubber spatula
- Parchment paper (optional)
Importance of Each Tool
- Stand mixer or electric beaters: These tools make it easy to cream the butter and sugar together until fluffy.
- Mixing bowls: Having multiple bowls helps keep your ingredients organized during preparation.
- Rubber spatula: A versatile tool for scraping down the sides of your mixing bowl and folding in ingredients without losing air.
Ingredients
Ingredients:
– 1/2 cup half and half, cream, or buttermilk
– 1 tsp lemon juice
– 1/2 cup unsalted butter at room temperature
– 1 cup granulated sugar plus 2 tsp for sprinkling
– 1 large egg, at room temperature
– 1 1/2 tsp vanilla extract
– 2 cups all purpose flour, saving out 1 Tbsp to toss with rhubarb
– 2 tsp baking powder
– 1 tsp salt
– 2 cups thinly sliced rhubarb
How to Make Rhubarb Cake
Step 1: Preheat the Oven
Preheat the oven to 350°F. Lightly butter a 9×9 square baking pan. For easier removal after baking, you can line the pan with parchment paper, leaving overhanging ends.
Step 2: Prepare the Buttermilk Mixture
Stir the lemon juice into the half and half, then set aside for about 5 minutes. This will create a homemade buttermilk that adds moisture to your cake.
Step 3: Cream Butter and Sugar
In a stand mixer or using electric beaters, cream together the unsalted butter and granulated sugar until fluffy and pale yellow. This should take about 3–5 minutes. Add in the large egg and vanilla extract, mixing until well combined. Don’t forget to scrape down the sides of the bowl as needed!
Step 4: Toss Rhubarb with Flour
Take 1 tablespoon of the all-purpose flour and sprinkle it over the sliced rhubarb. Toss well to coat each piece lightly. This helps prevent them from sinking in the batter during baking.
Step 5: Mix Dry Ingredients
In another bowl, whisk together the remaining flour, baking powder, and salt.
Step 6: Combine Wet and Dry Ingredients
Add half of the flour mixture into your creamed butter mixture, blending until just incorporated. Next, pour in all of your buttermilk mixture and blend again. Finally, add in the rest of your flour mixture and combine just until mixed—be careful not to overmix! Gently fold in the floured rhubarb.
Step 7: Bake
Spread the batter evenly into your prepared pan. Sprinkle about two teaspoons of sugar on top for a lovely crust. Bake for about 40–45 minutes or until golden brown. A toothpick inserted into the center should come out clean (moist crumbs are fine).
Step 8: Cool Before Cutting
Allow your Rhubarb Cake to cool slightly in the pan before cutting into squares. Enjoy this delightful treat!
How to Serve Rhubarb Cake
Rhubarb Cake is a delightful treat that can be enjoyed in various ways. Whether you are serving it for breakfast, brunch, or dessert, here are some great suggestions to elevate your experience.
With Fresh Whipped Cream
- Light and Airy: Top your slice of Rhubarb Cake with freshly whipped cream for a light and refreshing complement to the tartness of the rhubarb.
Accompanied by Vanilla Ice Cream
- Creamy Indulgence: Serve a warm piece with a scoop of vanilla ice cream. The melting ice cream adds a delicious creamy texture that balances the cake’s flavors beautifully.
Paired with Coffee or Tea
- Perfect Beverage Match: Enjoy Rhubarb Cake alongside a cup of coffee or tea. The warmth of the drink enhances the cake’s sweetness and complements the tart rhubarb.
With Yogurt and Berries
- Healthy Twist: For a healthier option, serve slices with yogurt and fresh berries. This adds freshness and makes for a great breakfast or snack.
Dusted with Powdered Sugar
- Simple Elegance: A light dusting of powdered sugar on top not only adds sweetness but also gives your cake an elegant finish suitable for any occasion.

How to Perfect Rhubarb Cake
To ensure your Rhubarb Cake turns out perfectly every time, follow these helpful tips.
- Use Fresh Rhubarb: Fresh rhubarb is key for flavor. Look for vibrant, firm stalks without blemishes.
- Don’t Overmix the Batter: To keep your cake light and fluffy, mix just until combined. Overmixing can lead to a dense cake.
- Check Baking Time: Ovens vary; start checking your cake at 40 minutes. It’s done when a toothpick comes out clean or with moist crumbs.
- Cool Before Slicing: Allow the cake to cool slightly before cutting to help it set and make slicing easier.
- Store Properly: Keep leftover cake in an airtight container at room temperature for up to three days, or refrigerate for longer freshness.
Best Side Dishes for Rhubarb Cake
Rhubarb Cake shines on its own but can be even better with these delicious side dishes. Pairing enhances the overall meal experience.
- Fruit Salad: A refreshing mix of seasonal fruits offers a sweet contrast to the tartness of the cake.
- Cheese Platter: A selection of cheeses, such as brie or goat cheese, pairs well with the cake’s flavors.
- Granola Parfait: Layer yogurt, granola, and fruit in glasses for a crunchy side that complements the soft texture of the cake.
- Savory Quiche: A slice of quiche adds protein and savory flavors that balance the sweetness of Rhubarb Cake.
- Roasted Nuts: Serve assorted roasted nuts as a crunchy snack that contrasts beautifully with the soft cake.
- Herb Salad: A light salad made with fresh herbs like mint or basil can refresh your palate after each bite of cake.
Common Mistakes to Avoid
Making Rhubarb Cake can be a delightful experience, but common mistakes can lead to less than perfect results. Here are some pitfalls to watch out for:
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Skipping the flour toss: Tossing the rhubarb with flour helps prevent it from sinking to the bottom during baking. Always remember this step for an evenly distributed fruit.
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Not using room temperature ingredients: Using cold butter or eggs can affect the texture of your cake. Ensure all ingredients are at room temperature for a fluffy result.
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Overmixing the batter: Overmixing can lead to a dense cake. Mix just until combined to keep your Rhubarb Cake light and airy.
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Ignoring baking time: Every oven is different, so keep an eye on your cake as it bakes. Check for doneness early to avoid overbaking.
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Using too much rhubarb: Adding excess rhubarb can make the cake soggy. Stick to the recommended amount for the best texture.
Storage & Reheating Instructions
Refrigerator Storage
- Duration: Store your Rhubarb Cake in the refrigerator for up to 5 days.
- Container: Use an airtight container or cover with plastic wrap to keep it fresh.
Freezing Rhubarb Cake
- Duration: You can freeze Rhubarb Cake for up to 3 months.
- Container: Wrap tightly in plastic wrap and place in a freezer-safe bag or container for best results.
Reheating Rhubarb Cake
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Oven: Preheat your oven to 350°F and heat individual slices wrapped in foil for about 10-15 minutes.
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Microwave: Heat slices on a microwave-safe plate for about 20-30 seconds, checking frequently.
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Stovetop: Place slices in a non-stick skillet over low heat, covering it until warmed through, which usually takes about 5 minutes.
Frequently Asked Questions
Here are some common questions about making Rhubarb Cake:
Can I use frozen rhubarb in my Rhubarb Cake?
Yes, you can use frozen rhubarb! Just make sure to thaw it completely and drain any excess moisture before adding it to the batter.
What can I serve with Rhubarb Cake?
Rhubarb Cake pairs wonderfully with whipped cream, ice cream, or even a dollop of yogurt for a delicious treat.
How do I know when my Rhubarb Cake is done?
You can check if it’s done by inserting a toothpick into the center; if it comes out clean or with only moist crumbs, it’s ready!
Can I add other fruits to my Rhubarb Cake?
Absolutely! You can mix in strawberries or blueberries along with rhubarb for extra flavor and variety.
What should I do if my cake is too tart?
If you find your cake too tart, consider adding more sugar next time or serving it with sweet toppings like frosting or syrup.
Final Thoughts
This classic Rhubarb Cake recipe is not only delicious but also versatile. It makes an excellent breakfast option or dessert that everyone will love. Feel free to customize it by adding nuts or other fruits. Give this recipe a try and enjoy the delightful flavors of spring!
Rhubarb Cake
- Total Time: 1 hour
- Yield: Serves approximately 12 people 1x
Description
Rhubarb Cake is a delightful and nostalgic treat, reminiscent of the classic recipes passed down through generations. This moist and flavorful cake features a perfect balance of sweet and tart rhubarb, making it an excellent choice for breakfast, brunch, or as a light dessert. With its easy preparation and versatile serving options, this cake will surely impress your family and friends. Whether served warm with whipped cream or enjoyed at room temperature as a snack, Rhubarb Cake is an ideal way to celebrate springtime gatherings like Easter or Mother’s Day.
Ingredients
- 1/2 cup half and half (or cream/buttermilk)
- 1 tsp lemon juice
- 1/2 cup unsalted butter (room temperature)
- 1 cup granulated sugar (plus 2 tsp for sprinkling)
- 1 large egg (room temperature)
- 1 1/2 tsp vanilla extract
- 2 cups all-purpose flour (plus 1 tbsp for tossing rhubarb)
- 2 tsp baking powder
- 1 tsp salt
- 2 cups thinly sliced rhubarb
Instructions
- Preheat your oven to 350°F and lightly butter a 9×9 inch baking pan.
- Combine lemon juice with half and half; set aside to create buttermilk.
- In a stand mixer, cream together butter and sugar until fluffy. Add egg and vanilla extract, mixing well.
- Toss sliced rhubarb in 1 tbsp flour to coat.
- In a separate bowl, whisk together remaining flour, baking powder, and salt.
- Gradually incorporate dry ingredients into the creamed mixture along with the buttermilk until just combined; fold in floured rhubarb.
- Spread batter in the prepared pan, sprinkle with sugar on top, and bake for 40-45 minutes until golden brown.
- Cool slightly before cutting into squares.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 square (85g)
- Calories: 236
- Sugar: 14g
- Sodium: 179mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 36mg





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