Table of Contents
- Key Takeaways
- A Cozy Classic That Never Fails
- Why This Rhubarb Cake is the Ultimate Easy Recipe
- Decadent Butter Sauce: A Must-Have Finish
- Tips for Making the Most of Your Rhubarb
- When to Serve This Sweet Treat
- Patricia’s Final Thoughts
Key Takeaways
This Easy Rhubarb Cake with Butter Sauce is one of those sweet easy recipes that’s made to impress without stress. With a soft, moist crumb and a rich, velvety topping, it’s perfect for spring and summer get-togethers—or simply as a cozy end to dinner recipes that bring the family together.

A Cozy Classic That Never Fails
There’s something deeply nostalgic about rhubarb cake. For me, it’s the kind of dessert that evokes front porch evenings and handwritten recipe cards. At Patricia Universe (patriciauniverse.com), I always aim to share comfort food that feels timeless yet easy to whip up. And this easy recipe? It’s a winner every single time.

Why This Rhubarb Cake is the Ultimate Easy Recipe
If you’re all about easy recipes that don’t skimp on flavor, this one belongs at the top of your list. It’s moist, sweet-tart, and comes together with simple pantry staples. Plus, it uses one of the most underrated springtime ingredients: rhubarb! Whether you’re new to baking or a seasoned pro, this quick and easy recipe is sure to become a household favorite.

Decadent Butter Sauce: A Must-Have Finish
Let’s not pretend we’re here just for the cake. The rich butter sauce that gets poured generously over each slice? It’s what takes this from everyday cake to over-the-top indulgence. Think of it as the cherry on top of your favorite sweet easy recipes—melty, silky, and absolutely necessary.

Tips for Making the Most of Your Rhubarb
Fresh rhubarb is the star here, but don’t stress if it’s out of season. Frozen rhubarb works just as well—just thaw and drain before using. You could even swap it out for other tart fruits like cranberries or green apples if you’re improvising a food receipt easy recipe. Also, don’t skip tossing the fruit in flour—it prevents it from sinking during baking.
When to Serve This Sweet Treat
This cake shines at brunches, Sunday dinners, or those nights when your dinner recipes call for a little something extra to end the meal. It’s simple enough for a casual family evening but dressed-up enough to wow guests. And thanks to its rich finish, it totally qualifies as an air fryer desserts easy recipe alternative—even though it’s oven-baked!
Patricia’s Final Thoughts
At Patricia Universe, I believe the best dishes are ones that feel special but are built from everyday ingredients. That’s the magic behind this easy recipe. Whether you’re cooking for yourself or feeding a crowd, it delivers warmth, comfort, and a good dose of buttery goodness every single time. Don’t forget to share your twist on it—I’d love to see your version of this classic rhubarb delight!


Easy Rhubarb Cake with Butter Sauce
Ingredients
- 1 1/2 cups brown sugar
- 1/2 cup vegetable oil
- 1 egg
- 1 teaspoon vanilla extract
- 1 cup buttermilk
- 2 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups diced rhubarb
- 1 tablespoon flour (for coating rhubarb)
- 1 tablespoon butter (for greasing the pan)
- 1 cup sugar (for sauce)
- 1/2 cup butter (for sauce)
- 1/2 cup heavy cream (for sauce)
Instructions
- Preheat oven to 350°F (175°C) and grease a 9×13 inch baking pan.
- In a large bowl, mix together brown sugar, oil, egg, and vanilla extract.
- Add buttermilk and mix well.
- In a separate bowl, combine flour, baking soda, and salt. Add to wet ingredients and stir just until combined.
- Toss diced rhubarb with 1 tablespoon of flour, then fold into the batter.
- Pour batter into the prepared pan and bake for 40–45 minutes or until a toothpick comes out clean.
- For the butter sauce, combine sugar, butter, and cream in a saucepan over medium heat.
- Bring to a gentle boil, stirring constantly until sugar is dissolved and sauce is smooth.
- Serve warm cake with generous spoonfuls of the butter sauce over the top.
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