Spring just called—it wants its rhubarb coffee cake back. This juicy, tart dream comes topped with a crispy cinnamon-sugar layer that’ll have people asking if you’ve secretly been to culinary school. It’s the kind of cake that makes your kitchen smell like comfort and gets demolished before coffee’s even done brewing. Whether it’s a weekend breakfast or a “I need to impress someone” moment, this is your move.
Why You’ll Love This Rhubarb Coffee Cake

- Golden, tender crumb that’s somehow both sturdy and melt-in-your-mouth—magic? probably 🎂
- Tart rhubarb filling that cuts through the sweetness with zero cloying vibes 🌸
- That cinnamon crumb topping is basically edible jewelry that makes everyone go feral 🤤
Ingredients You’ll Need
- 2 cups all-purpose flour — the foundation of our fluffy dreams 🌾
- 1½ tsp baking powder — your rise-and-shine helper
- ½ cup butter (1 stick), softened — creaming magic starts here
- 1 cup sugar — sweetness that balances the rhubarb’s tang
- 1 large egg, ½ cup sour cream, 1 tsp vanilla extract — the wet crew that makes it tender
- 3 cups fresh or frozen rhubarb, chopped — the star of this show 💚
- ½ cup brown sugar, ⅓ cup flour, ¼ tsp cinnamon, 3 tbsp cold butter, cubed — for the crumb topping
- ½ tsp salt — don’t skip this tiny hero
Easy Rhubarb Coffee Cake Swaps
- Frozen rhubarb → Works perfectly—no thaw needed, just toss it in straight from the bag ❄️
- Greek yogurt → Use instead of sour cream; the cake will be slightly denser but still gorgeous 🥛
How to Make Rhubarb Coffee Cake
Step 1: Build the Batter
Preheat your oven to 350°F and grease a 9×13 pan. Whisk together flour, baking powder, and salt in one bowl and set it aside. In another bowl, cream the softened butter and sugar until fluffy—about 1 to 2 minutes of beating will do it. Beat in the egg, then sour cream and vanilla, mixing until smooth. Gently fold the dry mixture into the wet mixture until just combined (don’t overthink it—overmixing makes tough cake, and we’re after tender here). Spread the batter evenly into your prepared pan.
Step 2: Add the Rhubarb Magic
Toss your rhubarb pieces with 2 tablespoons of sugar—this coaxes out the juices and tells the fruit “let’s do this.” Scatter the rhubarb over the batter like you’re planting a spring garden. Don’t worry about submerging every single piece; the cake rises during baking and hugs everything beautifully. The juices will settle and create little pockets of tart flavor throughout.
Step 3: Top & Bake
Make the crumb topping by mixing brown sugar, flour, cinnamon, and cold cubed butter with your fingertips until the mixture looks like coarse breadcrumbs. Sprinkle that gorgeous topping all over the rhubarb layer. Bake for 45 to 50 minutes, until a toothpick inserted into the cake (not the rhubarb) comes out clean and the top is golden brown. Let it cool for at least 10 minutes before cutting—this gives the structure time to set so you don’t get a crumbly disaster.
Recipe Variations & Tips
- Doneness Check — The top should be golden and a toothpick in the cake (not the fruit) should come out clean; if you’re unsure, give it 5 more minutes and check again.
- Make-Ahead Magic — Assemble the whole thing (batter, rhubarb, topping) the night before, cover it, and bake straight from the fridge the next morning; add 5 minutes to bake time.
- Strawberry-Rhubarb Twist — Use 2 cups rhubarb plus 1 cup diced strawberries for a softer tartness and beautiful pink streaks.
- Almond Extract Addition — Add ¼ tsp almond extract to the batter for a subtle, sophisticated flavor boost that plays beautifully with the rhubarb.
Serving & Storage
| Topic | Notes |
|---|---|
| Best Serving | Serve warm with whipped cream or vanilla ice cream for maximum indulgence 🍦 |
| Room Temperature Storage | Stays fresh and moist for 2 to 3 days covered on the counter with plastic wrap or in an airtight container. |
| Freezer Storage | Wrap individual slices in plastic wrap and aluminum foil; they’ll keep up to 2 months frozen 🧊 |
| Reheating | Warm a slice for about 5 minutes in a 300°F oven to bring back that just-baked texture and flavor. |
Nutrition Notes
This rhubarb coffee cake is a celebration dessert and breakfast hybrid, so it’s meant to be indulged in rather than calorie-counted obsessively. One slice gives you comfort, joy, and a decent amount of carbs from the flour and sugar—the sour cream adds richness without being heavy. The rhubarb itself is naturally low in calories and adds fiber, so at least we can tell ourselves that part is basically health food.
- Serving Size: 1 slice (1/12 of cake)
- Calories: 285 kcal
- Protein: 3 g
- Carbs: 42 g
- Fat: 12 g
- Sodium: 220 mg
rhubarb coffee cake
A delightful rhubarb coffee cake that combines the tartness of rhubarb with a sweet, moist cake. Perfect for brunch or a dessert treat!
- Total Time: 55 minutes
- Yield: 12 servings 1x
Ingredients
2 cups diced rhubarb
1 1/2 cups all-purpose flour
1 cup granulated sugar
1/2 cup unsalted butter, softened
2 large eggs
1/2 cup milk
1 tsp vanilla extract
1 tsp baking powder
1/2 tsp baking soda
1/4 tsp salt
1/2 cup brown sugar
1 tsp ground cinnamon
Instructions
1. Preheat your oven to 350°F (175°C).
2. In a large bowl, cream together the butter and granulated sugar until light and fluffy.
3. Add the eggs one at a time, beating well after each addition.
4. Stir in the vanilla extract and milk.
5. In another bowl, whisk together the flour, baking powder, baking soda, and salt.
6. Gradually add the dry ingredients to the wet mixture, mixing until just combined.
7. Fold in the diced rhubarb gently.
8. Pour the batter into a greased 9×13 inch baking dish.
9. In a separate bowl, mix the brown sugar and cinnamon together, then sprinkle it over the batter.
10. Bake in the preheated oven for 35-40 minutes, or until a toothpick comes out clean.
11. Let cool before serving.
Notes
Serve warm or at room temperature. This cake can be stored in an airtight container for up to 3 days. For an extra touch, serve with whipped cream or vanilla ice cream.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Seasonal & Party Feasts 🎉
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 slice
- Calories: 220 kcal
- Sugar: 15g
- Sodium: 150mg
- Fat: 8g
- Saturated Fat: 5g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 40mg
Keywords: rhubarb, coffee cake, dessert
FAQ
Can I Use Frozen Rhubarb Instead of Fresh?
Absolutely—don’t even thaw it. Frozen rhubarb releases juice beautifully as it bakes, and the cake absorbs it all with the same magical results. Same bake time, same deliciousness, zero guilt about eating spring in January.
What If My Cake Sinks in the Middle?
Rhubarb releases liquid as it bakes, so a tiny dip is normal and honestly part of the charm. If it’s really sunken, your oven might run hot—try 325°F next time and add 5 to 10 minutes to the bake time. Either way, it still tastes like a hug.