Rhubarb Cinnamon Roll Cake: A Sweet Symphony of Tang and Spice

Rhubarb Cinnamon Roll Cake brings together the cozy warmth of cinnamon rolls with the bright, tart sparkle of rhubarb. This dessert is the perfect harmony of old-fashioned comfort and fruity surprise, offering a twist on a classic that will leave everyone reaching for seconds. Imagine tender layers of cake wrapped in ribbons of cinnamon sugar and swirled with juicy rhubarb—then finished with a delicate glaze that melts into every crevice.

This cake isn’t just delicious; it’s a celebration of contrast. The buttery richness of the cake meets the bold zest of rhubarb, while swirls of cinnamon offer familiar comfort. It’s the kind of dessert that steals the spotlight at any table, whether it’s served warm from the oven with a cup of coffee or chilled as a midday treat. In this article, you’ll find everything you need to make this irresistible dessert—from a list of ingredients to step-by-step directions, plus helpful tips and variations to make it truly your own.

Why You’ll Love This Recipe

Rhubarb Cinnamon Roll Cake is the kind of dessert that becomes a cherished favorite. Here’s why it’s so special:

1. Unexpected Flavor Combo – The tart rhubarb balances perfectly with sweet cinnamon and buttery cake.
2. Beautiful Swirls – The layers of rhubarb and cinnamon sugar create stunning swirls throughout the cake.
3. Super Simple Base – Using a boxed cake mix cuts prep time without sacrificing homemade flavor.
4. Perfect for Gatherings – This recipe yields a generous 9×13-inch cake—perfect for parties, potlucks, or family dessert.
5. Great Make-Ahead Option – It tastes amazing both warm and cold, and stores beautifully.
6. Versatile and Adaptable – Easy to tweak with other fruits or spices for variety.

This cake is a conversation starter, a crowd-pleaser, and a delightful departure from the ordinary. Whether you’re a rhubarb lover or just looking to try something new, this cake is sure to make its way into your regular rotation.

Preparation and Cooking Time

This easy and comforting recipe comes together in under an hour:

• Preparation Time: 15 minutes
• Cooking Time: 40 minutes
• Total Time: 55 minutes

Ingredients

For the Cake:

• 1 box (15.25 oz) yellow cake mix
• 3/4 cup milk
• 1/2 cup unsalted butter, melted
• 3 large eggs
• 1 teaspoon vanilla extract

For the Rhubarb Filling:

• 2 cups chopped rhubarb
• 1/4 cup granulated sugar
• 1 tablespoon cornstarch

For the Cinnamon Swirl:

• 1/4 cup unsalted butter, softened
• 1/2 cup brown sugar, packed
• 1 tablespoon ground cinnamon

For the Glaze:

• 1 cup powdered sugar
• 2 tablespoons milk
• 1/2 teaspoon vanilla extract

Step-by-Step Instructions

1. Prepare the Cake Batter
Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking dish. In a large mixing bowl, combine the cake mix, milk, melted butter, eggs, and vanilla extract. Mix until smooth and well-blended.

2. Make the Rhubarb Filling
In a small bowl, toss the chopped rhubarb with the granulated sugar and cornstarch until every piece is evenly coated. Set aside.

3. Make the Cinnamon Swirl
In another small bowl, mix together the softened butter, brown sugar, and cinnamon until a smooth, spreadable paste forms.

4. Assemble the Cake
Pour half of the cake batter into the prepared baking dish and smooth it out evenly. Distribute the rhubarb filling over the batter, then spoon dollops of the cinnamon swirl mixture across the top. Add the remaining batter and swirl everything gently with a knife to create a marbled effect.

5. Bake
Place in the oven and bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean.

6. Make the Glaze
While the cake is baking, whisk together powdered sugar, milk, and vanilla until smooth.

7. Serve
Allow the cake to cool slightly, then drizzle the glaze over the warm cake. Slice and serve warm or at room temperature.

How to Serve

Serve this Rhubarb Cinnamon Roll Cake with intention to highlight its flavors and texture:

1. Warm or Chilled: It tastes wonderful slightly warm or fully cooled—ideal for any season.
2. Garnish: Add a sprinkle of powdered sugar or a few extra rhubarb pieces on top for elegance.
3. Pairings: Serve with whipped cream, vanilla ice cream, or a hot cup of coffee for a cozy treat.
4. Presentation: Cut into generous squares for a rustic look or trim edges for a more polished slice.

Whether for a brunch buffet, summer picnic, or casual family dinner, this cake is a joyful and flavorful offering.

Additional Tips

• Use Fresh Rhubarb: It provides the best texture and tartness, but frozen works in a pinch—just thaw and drain it well.
• Mix it Up: Add a pinch of nutmeg or allspice to the cinnamon swirl for a deeper spice profile.
• Storage: Cover leftovers tightly and store at room temperature for up to 2 days or in the fridge for up to 4.
• Make it a Dessert Bar: Serve alongside other fruit-based cakes or pastries for a vibrant dessert spread.

Recipe Variation

Try these fun spins on the classic Rhubarb Cinnamon Roll Cake:

1. Strawberry Rhubarb Cake: Mix in 1 cup of diced strawberries with the rhubarb for a sweet-tart duo.
2. Nutty Twist: Add 1/2 cup chopped pecans or walnuts to the cinnamon swirl for crunch.
3. Lemon Glaze: Replace milk with lemon juice in the glaze for a zingy finish.
4. Mini Cake Version: Pour into muffin tins and reduce bake time to 20–25 minutes for individual servings.

Freezing and Storage

• To Store: Keep the cake covered in an airtight container at room temperature or in the refrigerator.
• To Freeze: Cut into squares, wrap individually in plastic wrap, and freeze in a sealed bag for up to 2 months. Thaw and warm slightly before serving for best taste.

Special Equipment

To bring this recipe to life, you’ll need:

• Mixing bowls
• Electric mixer or whisk
• 9×13-inch baking dish
• Measuring cups and spoons
• Knife or spatula for swirling

Frequently Asked Questions

Can I use frozen rhubarb?
Yes! Just thaw and drain it well to prevent excess moisture in the batter.

What if I don’t have a boxed cake mix?
You can use a homemade yellow cake recipe as a base. Just ensure the consistency is similar to a standard boxed mix batter.

Can I skip the glaze?
Of course! The cake is delicious on its own, but the glaze adds that extra touch of sweetness.

Can I make it ahead of time?
Yes! You can bake the cake a day in advance and glaze it just before serving.

What other fruits can I use?
Blueberries, strawberries, or even diced apples work beautifully as rhubarb substitutes or additions.

Conclusion

Rhubarb Cinnamon Roll Cake is more than a dessert—it’s a joyful journey of flavor and comfort. With its tender crumb, gooey cinnamon swirls, and bursts of tart rhubarb, this cake is destined to impress. Whether shared with loved ones or savored solo with your favorite drink, every bite is a reminder of how simple ingredients can create something truly special. Give it a try, and you might just fall in love with rhubarb all over again.

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