Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting

Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting are a delightful twist on the classic sticky bun, incorporating the tartness of rhubarb with the rich sweetness of vanilla-infused mascarpone. These buns feature a soft, buttery brioche dough filled with a homemade rhubarb jam, all topped with a creamy vanilla bean mascarpone frosting.

Why You’ll Love This Recipe

  • Seasonal Delight: Utilizes fresh rhubarb, making it perfect for spring and early summer baking.
  • Flavor Harmony: The tartness of rhubarb complements the sweet, creamy frosting, creating a balanced flavor profile.
  • Impressive Presentation: These buns are not only delicious but also visually appealing, making them ideal for brunches or special occasions.
  • Make-Ahead Friendly: The brioche dough can be prepared in advance, allowing for convenient baking.
  • Versatile: Suitable for breakfast, dessert, or a sweet snack.

Ingredients

Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting 10 Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting are a delightful twist on the classic sticky bun, incorporating the tartness of rhubarb with the rich sweetness of vanilla-infused mascarpone. These buns feature a soft, buttery brioche dough filled with a homemade rhubarb jam, all topped with a creamy vanilla bean mascarpone frosting.

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the Rhubarb Quick Jam:

  • Fresh rhubarb
  • Granulated sugar
  • Pinch of salt
  • Vanilla bean paste

For the Brioche Dough:

  • Active dry yeast
  • Whole milk
  • Granulated sugar
  • All-purpose flour
  • Salt
  • Large eggs
  • Vanilla bean paste
  • Unsalted butter

For the Vanilla Bean Mascarpone Frosting:

  • Mascarpone cheese
  • Cream cheese
  • Vanilla bean paste
  • Powdered sugar

Directions

  1. Prepare the Rhubarb Quick Jam: In a saucepan, combine chopped rhubarb, granulated sugar, and a pinch of salt. Cook over medium heat, stirring frequently, until the mixture thickens into a jam-like consistency. Remove from heat and stir in vanilla bean paste. Allow to cool completely.
  2. Make the Brioche Dough: Dissolve active dry yeast in lukewarm whole milk with a portion of granulated sugar. Let it sit until foamy. In a stand mixer, combine all-purpose flour, salt, remaining sugar, eggs, and vanilla bean paste. Add the yeast mixture and mix until a dough forms. Gradually add softened unsalted butter, mixing until the dough is smooth and elastic. Transfer to an oiled bowl, cover, and let it rise until doubled in size.
  3. Assemble the Sticky Buns: Roll out the risen dough into a large rectangle on a floured surface. Spread the cooled rhubarb jam evenly over the dough. Starting from a long edge, roll the dough into a tight log. Cut the log into equal pieces and place them in a greased baking dish, leaving space between each piece. Cover and let them rise until puffy.
  4. Bake: Preheat the oven to 350°F (175°C). Bake the buns until golden brown and cooked through.
  5. Prepare the Vanilla Bean Mascarpone Frosting: While the buns are baking, beat together mascarpone cheese, cream cheese, vanilla bean paste, and sifted powdered sugar until smooth and creamy.
  6. Frost and Serve: Once the buns have cooled slightly, spread the frosting generously over each bun. Serve warm or at room temperature.

Servings and Timing

  • Servings: Approximately 12 buns
  • Preparation Time: 2 hours (including dough rising time)
  • Cooking Time: 25-30 minutes
  • Total Time: Approximately 2 hours 30 minutes

Variations

  • Fruit Substitutions: Replace rhubarb with other fruits like strawberries or raspberries for a different flavor.
  • Nut Addition: Sprinkle chopped nuts, such as pecans or walnuts, over the rhubarb jam before rolling the dough for added texture.
  • Spiced Dough: Incorporate ground cinnamon or cardamom into the dough for a warm spice note.

Storage/Reheating

  • Storage: Store leftover buns in an airtight container at room temperature for up to 2 days or refrigerate for up to a week.
  • Freezing: Unfrosted buns can be frozen for up to 3 months. Thaw at room temperature and warm before frosting.
  • Reheating: Warm buns in the oven at 300°F (150°C) for about 10 minutes or microwave individual buns for 20-30 seconds.

FAQs

Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting
Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting 11 Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting are a delightful twist on the classic sticky bun, incorporating the tartness of rhubarb with the rich sweetness of vanilla-infused mascarpone. These buns feature a soft, buttery brioche dough filled with a homemade rhubarb jam, all topped with a creamy vanilla bean mascarpone frosting.

Can I prepare the dough ahead of time?

Yes, the brioche dough can be made a day in advance and refrigerated overnight. This slow fermentation enhances the flavor.

Is it necessary to use vanilla bean paste?

Vanilla bean paste provides a rich flavor and visual appeal. If unavailable, you can substitute with an equal amount of pure vanilla extract.

Can I make the rhubarb jam in advance?

Absolutely, the rhubarb jam can be prepared up to a week ahead and stored in the refrigerator.

What if I don’t have mascarpone cheese?

You can substitute mascarpone with additional cream cheese, though the flavor and texture will be slightly different.

How do I know when the buns are fully baked?

The buns should be golden brown on top, and an internal temperature should read about 190°F (88°C).

Print
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Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting

Rhubarb Sticky Buns with Vanilla Bean Mascarpone Frosting

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  • Author: KimEasy
  • Prep Time: 30 minutes
  • Cook Time: 30 minutes
  • Total Time: 2 hours 30 minutes
  • Yield: 12 sticky buns
  • Category: Desserts
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These soft and gooey rhubarb sticky buns are a springtime twist on a classic favorite. Swirled with sweet-tart rhubarb filling and topped with a rich vanilla bean mascarpone frosting, they’re the ultimate weekend treat. Perfect for brunch, dessert, or just because!


Ingredients

For the dough:

  • 3/4 cup warm milk (about 110°F)

  • 2 1/4 tsp active dry yeast (1 packet)

  • 1/4 cup granulated sugar

  • 1/4 cup unsalted butter, melted

  • 1 large egg

  • 1/2 tsp salt

  • 2 3/4 cups all-purpose flour

For the rhubarb filling:

  • 2 cups chopped fresh rhubarb

  • 1/3 cup brown sugar

  • 1/4 cup granulated sugar

  • 2 tbsp cornstarch

  • 1/2 tsp ground cinnamon

  • 1 tsp vanilla extract

  • Pinch of salt

For the frosting:

 

  • 1/2 cup mascarpone cheese (room temperature)

  • 1/4 cup unsalted butter (room temperature)

  • 1 1/4 cups powdered sugar

  • 1 tsp vanilla bean paste (or extract)

  • 1-2 tbsp milk (as needed for consistency)


Instructions

  1. Make the dough: In a large bowl, combine warm milk and yeast. Let sit for 5–10 minutes until foamy. Stir in sugar, melted butter, egg, and salt. Add flour gradually and mix until a soft dough forms. Knead on a lightly floured surface for 5–7 minutes, until smooth and elastic.

  2. Let it rise: Place dough in a greased bowl, cover, and let rise in a warm spot for 1 hour or until doubled.

  3. Make the filling: While the dough rises, cook the rhubarb, brown sugar, granulated sugar, cornstarch, cinnamon, vanilla, and salt in a saucepan over medium heat until thick and jammy (about 10–12 minutes). Let cool.

  4. Roll and fill: Roll out the dough into a 12×16-inch rectangle. Spread the cooled rhubarb filling evenly over the dough. Roll up tightly from the long side and slice into 12 equal pieces.

  5. Second rise: Place buns in a greased 9×13-inch baking dish. Cover and let rise for another 30–40 minutes until puffy.

  6. Bake: Preheat oven to 350°F (175°C). Bake buns for 25–30 minutes until golden and cooked through.

  7. Make the frosting: In a medium bowl, beat mascarpone and butter until smooth. Add powdered sugar and vanilla bean paste, and mix well. Add milk a little at a time until desired consistency is reached.

  8. Frost and serve: Let buns cool slightly before spreading with the frosting. Serve warm or at room temperature.


Notes

  • These buns are best the day they’re made but can be reheated the next day.

  • You can prep the dough and filling the night before, then assemble and bake in the morning.

 

  • For extra decadence, drizzle with a bit of maple syrup or caramel before frosting.

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