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    Recipes » Breakfast & Brunch

    Rhubarb Coffee Cake with Cinnamon Streusel

    Published: May 18, 2021 · Modified: Dec 29, 2022 by foodworthfeed

    Jump to Recipe Print Recipe

    This homemade Rhubarb Coffee Cake recipe makes for a lovely breakfast or snack cake! This simple recipe uses a moist sour cream coffee cake layered with a tart rhubarb filling and topped with a crumbly cinnamon streusel.

    A slice of Rhubarb crumb cake on a white plate with a smear of soft butter

    If you love this recipe, you should also try our Strawberry Shortcake Crumb Cake! It uses the same sour cream bake base flavored with freeze dried strawberry powder.

    Jump to:
    • Ingredients
    • Making This Recipe in One...Two...Three...
    • Rhubarb Glaze
    • Storing and Saving for Later
    • You May Also Like...
    • Recipe

    Ingredients

    This Rhubarb crumb cake recipe is made with fresh rhubarb and just a handful of common baking ingredients!

    Ingredients needed to make this rhubarb coffee cake recipe
    Ingredient quantities are listed in the recipe card at the bottom of this post.

    Making This Recipe in One...Two...Three...

    This recipe is made from 3 simple components. Here's the ABC's of it:

    1. Quick Bread Batter
    2. Rhubarb Compote
    3. Cinnamon Streusel

    1. Quick Bread: Measuring, Mixing & The Ribbon Stage

    This sour cream coffee cake batter is a versatile, old-fashioned favorite that we use as the base for several muffins, breads and coffee cakes. If you don't have a loaf pan, you can bake this recipe in a 9x9 square pan, like we do with our Strawberry Shortcake Crumb Cake.

    When mixing this crumb cake batter, the first step is to mix the sugar and eggs together until the ribbon stage is reached. This first step is the most important technique in this recipe. It can be done by hand - with a whisk and determination, or in the bowl of a stand mixer fitted with the whisk or paddle attachments. Make sure to temper your egg to room temperature before mixing.

    Demonstrating the ribbon method with a stream of batter in a figure 8 pattern

    Baker's Journal: The Ribbon Stage

    The ribbon stage refers to a certain texture achieved when whipping egg(s) and sugar together. At this stage, the egg(s) and sugar will be very pale, aerated, and fall in thick ribbons from the whisk or paddle attachment. The air incorporated into the egg and sugar mixture helps to leaven the bread and create a tender, fluffy cake. When done correctly, ribbons of batter will sit on the batter's surface for several seconds before blending in. Try drawing a figure 8 in the batter to test if your mixture has reached the ribbon stage.

    Mixing the Batter

    Furthermore, it is important that you do not over-mix the batter. Personally, I like to make the batter in a stand mixer. Once I add the dry ingredients, in the final step of mixing, I use the machine's lowest speed until about 90% of the flour mixture is incorporated. Then, I always finish by hand, mixing in the last bits of flour and scraping the bottom of the bowl with a rubber spatula. Using this method, I can ensure that the bread is never over-mixed and that I don’t over-develop the gluten.

    If this thick batter is over-mixed it will become tough, rubbery and prevent proper leavening (rising). If severely over-mixed, these style of breads will result in tunneling, or tubular gaps in the crumb structure that will cause an uneven rise and gummy texture.

    Baker's Journal: Weighing the Odds - As with any baking recipe, we strongly suggest you measure your rhubarb coffee cake batter ingredients by weight, not volume. Yes, yes. I understand this is not the standard in most US kitchens. However, it actually makes baking easier and will ensure your results are MUCH more precise.

    While I have converted this recipe to the State’s more common cups and spoonfuls, you should know that this recipe was developed and tested using weight measurements. In my kitchen, one cup of all-purpose flour weighs 130 grams when spooned and leveled. In King Arthur’s kitchen, one cup only weighs 120 grams. It may seem like an insignificant difference, but the science of baking is a finicky beast! 

    slices cut off a loaf of sour cream rhubarb crumble bread
    Serve bread warm with a pat of soft butter.

    2. Homemade Rhubarb Compote

    This rhubarb coffee cake recipe gets its tart any tangy flavor from a thick layer of homemade rhubarb compote. This compote, like a jam, is made simply by boiling fresh, chopped rhubarb with sugar and a hint of vanilla extract. In just fifteen, or so, minutes, the rhubarb mixture cooks down, thickens and caramelizes with the sugar. The result is a thick, sweet and tart compote. If it's too sweet, feel free to add a squeeze of lemon juice.

    It's an easy recipe with many uses. (It's delicious spread on a biscuit with your morning coffee, or topping a big scoop of vanilla ice cream, for example). This compote recipe in the bottom of this post makes the perfect amount to layer into the loaf pan and can be made a day or two ahead of time, if necessary. 

    Can I Use Frozen Rhubarb?

    Absolutely. One of the best things about fresh Spring rhubarb is that it is super hearty and freezes very well! Extra rhubarb can be frozen in whole stalks or chopped prior to freezing. Fully or partially thaw the frozen rhubarb before making the compote for this recipe. 

    3. Cinnamon Streusel

    This simple crumb topping takes this recipe from good to soo good! It's a super easy portion of the recipe that adds a crave-able texture and a little cinnamon-y spice! We like to mix the streusel topping and set it aside before we make the batter. This way, the flour has a few minutes to be absorbed into the butter and makes for a superb crunchy streusel with a crumbly texture.

    Rhubarb Glaze

    If you'd like to enhance this easy rhubarb cake recipe with a drizzle of glaze...welp, we've got you covered. I made this simple icing with powdered sugar and our homemade rhubarb syrup. (The syrup is a 10, by the way. Tart, electrically pink and perfect for lemonade or one of our favorite rhubarb recipes: Strawberry Rhubarb Whiskey Sour!)

    Rhubarb cinnamon crumble cake being drizzled with glaze
    Drizzling the Rhubarb Coffee Cake with a naturally pink rhubarb icing.

    You could also finish the top of the cake with a dusting of powdered sugar or a simple glaze of whisked powdered sugar, vanilla, lemon zest and milk or water. Or, go full-on dessert mode with a scoop of our home-churned Old Fashioned Vanilla Bean Ice Cream.

    Storing and Saving for Later

    • Room Temperature: Truth be told, rhubarb coffee cake is at its best when enjoyed the same day it was baked. That being said, this recipe can be stored on the countertop, in an airtight container for 2 - 4 days. If you're like us, you'll leave the knife by the pan and help yourself to a thin slice of cake whenever you walk by. After storing, we recommend microwaving a slice of cake for 15 - 20 seconds for a little warmth and to help it spring back to a soft, tender texture. 
    • Freezer: Rhubarb coffee cake also freezes well! For the best results, we recommend slicing and freezing cooled cake on the same day it was baked. For the best results, tightly wrap the bread in plastic wrap, twice. Personally, we like to wrap individual slices for easy on-the-go sorts of mornings. The individual slices thaw quickly and are perfect to throw in the lunchbox, quickly nuke for a speedy breakfast or pull out for the perfect midnight snack. 🙂

    You May Also Like...

    • Rhubarb Syrup - For Cocktails, Mocktails & Sweets
    • Strawberry Crumb Cake (With Fresh & Freeze Dried Berries)
    • Strawberry Shortcake with Lavender Sugar
    • Cinnamon Streusel Muffins

    This easy Rhubarb Coffee Cake recipe is a lovely recipe for breakfast, brunch or afternoon tea. When this recipe makes its way to your table,
    please leave us a star rating below!

    Recipe

    slices cut off a loaf of sour cream rhubarb crumble bread

    Rhubarb Coffee Cake with Cinnamon Streusel

    This delicious Rhubarb Coffee Cake recipe is a moist, sour cream crumb cake layered with a tart rhubarb filling and topped with a cinnamon crumble.
    5 from 6 votes
    Rate This Recipe
    Print Pin
    Course: Breakfast, Brunch
    Cuisine: American
    Prep Time: 10 minutes
    Cook Time: 1 hour
    Rhubarb Compote: 25 minutes
    Total Time: 1 hour 35 minutes
    Servings: 9 servings
    Author: foodworthfeed
    Prevent your screen from going dark while reading this recipe

    Special Equipment

    • Stand Mixer with Paddle Attachment (or Electric Mixer) Optional, but recommended
    • Standard Loaf Pan (Typically about 8½ x 4½ x 2½ inches) OR 8x8" OR 9x9" Square Pan
    • Parchment Paper

    Ingredients

    Rhubarb Compote

    • 1 pound fresh (or frozen) rhubarb medium diced
    • ½ Cup granulated sugar
    • 1 Tablespoon vanilla extract or about 5 centimeters [2 inches] of a split vanilla bean

    Cinnamon Streusel

    • 1 Cup all-purpose flour
    • ⅓ Cup lightly-packed light brown sugar
    • 1 teaspoon ground cinnamon
    • ¼ teaspoon fine kosher salt*
    • ¼ Cup unsalted butter melted

    Quick Bread

    • 2¼ Cups all-purpose flour
    • 1 Tablespoon baking powder
    • ½ teaspoon fine kosher salt*
    • 1 large egg room-temperature
    • 1 Cup granulated sugar
    • ¼ Cup unsalted butter melted and cooled slightly
    • 1 Tablespoon vanilla extract
    • 1 Cup plus 3 Tablespoons full-fat sour cream room-temperature
    • Rhubarb Compote

    Rhubarb Glaze (Optional) 

    • 1 ounce Rhubarb Syrup < recipe linked
    • ¼ Cup powdered sugar plus more as needed
    US Customary - Metric

    Instructions

    Rhubarb Compote

    • Gather, measure and prepare the Rhubarb Compote ingredients as listed. To view metric measurements, toggle the US Customary/Metric switch at the top of this recipe card.
      In a medium sauce pan, combine the diced rhubarb and sugar. Set over medium heat and stir to combine. Continue stirring frequently while sugar liquifies and begins to boil. 
    • Cook Rhubarb Compote at a low boil, stirring frequently for 15 - 20, minutes or until the the rhubarb has been cooked very soft and spreadable. If the compote seems very liquidy, continue cooking until the thickened consistency of jam is reached. (a.)
    • Remove the Rhubarb Compote from heat and stir in vanilla extract. Refrigerate to cool while mixing the Cinnamon Streusel and Quick Bread. Rhubarb Compote can be made 1 - 2 days ahead of time, if desired.

    Cinnamon Streusel

    • Gather, measure and prepare the Cinnamon Streusel ingredients as listed.
    • In a medium mixing bowl, combine flour, brown sugar, cinnamon and salt. Whisk to combine. Pour melted butter over dry ingredients and stir to combine. Set the Cinnamon Streusel mixture aside to hydrate until ready to top on the Rhubarb Coffee Cake batter.

    Quick Bread

    • Gather, measure and prepare the Rhubarb Coffee Cake ingredients as listed. For the most consistent results, we recommend using metric weight measurements whenever possible.
      Arrange a rack in the center of the oven. Preheat to 350° Fahrenheit (180° celsius). Meanwhile, prepare a loaf pan with parchment paper (or grease and flour well). 
    • In a medium mixing bowl, combine flour, baking powder and salt. Whisk to combine and set aside. 
    • In the bowl of a stand mixer fitted with the paddle attachment (or medium mixing bowl with an electric handheld mixer or whisk) combine the egg and sugar. Mix on medium low speed until pale, aerated and the ribbon stage (batter falls in thick “ribbons”) is achieved. (b.)
    • While mixing on medium-low speed, drizzle in melted butter and vanilla. Then, add the sour cream in 2 - 3 additions, mixing to incorporate between each addition.
      Add the flour mixture to the stand mixer and mix on the lowest speed until just incorporated. If necessary, finish mixing in any dry flour with a rubber spatula. Batter will be very thick.
    • Spread one half of the batter into the bottom of the prepared loaf pan. Level the batter with a rubber spatula or small, offset spatula. 
    • Next, spread the Rhubarb Compote in an even layer over the batter. Top with remaining batter and spread until leveled. 
    • Crumble the Cinnamon Streusel over the Rhubarb Coffee Cake batter. Press lightly into the top of the loaf to secure the crumble.
    • Bake the bread, for about 55 - 65 minutes (c.) or until the center of the loaf springs back when lightly poked. (Be careful, it’s hot!)
    • Once baked, remove the Rhubarb Coffee Cake from the oven and cool for 10 minutes. Use the parchement papaer to lift the Rhubarb Bread from the pan and transfer to cooling rack to cool completely. Meanwhile, make the Rhubarb Glaze, if using.
    • To serve, slice Rhubarb Coffee Cake with a sharp knife. Spread with some softened butter, if desired. Enjoy!  

    Rhubarb Glaze (Optional) 

    • Gather, measure and prepare the Rhubarb Glaze ingredients as listed.
      In a small mixing bowl, whisk the Rhubarb Syrup and powdered sugar until combined. The glaze should be a thick, consistency that is easy to drizzle. Add a little more powdered sugar 1 teaspoon at a time, if needed, to thicken. Once the Rhubarb Bread has cooled completely, drizzle the glaze over the top of the loaf, as desired.

    Notes

    a.) Fresher rhubarb will have a higher water content and may need to be boiled for a couple additional minutes.
    b.) For more information, see the The Ribbon Stage text above.
    c.) If using a square pan, the coffee cake should be fully baked in 50 - 55 minutes. 

    *Unless otherwise noted, foodworthfeed recipes are developed using Diamond Crystal brand kosher salt. If using iodized or table salt, reduce quantities by about half.

    Nutrition

    Serving: 1loaf | Calories: 377kcal | Carbohydrates: 60g | Protein: 6g | Fat: 12g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 49mg | Sodium: 354mg | Potassium: 101mg | Fiber: 1g | Sugar: 24g | Vitamin A: 387IU | Vitamin C: 1mg | Calcium: 113mg | Iron: 2mg
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