“Thank you for this lovely, simple recipe! Made the rhubarb cake according to instructions and knew right away that I should have made two. ~Nancy
an easy rhubarb cake for breakfast and beyond
The texture of this cake is just perfect, it’s not too sweet, and the tart rhubarb gives it a unique flavor. There’s a nice background note of vanilla in the batter which plays really well with the rhubarb. And then there’s that slightly crunchy sugary crust ~ this rhubarb cake is divine whether you have it for breakfast, snack on it all day, or save it for dessert.
ingredients for rhubarb cake
You’ll just need a few stalks of rhubarb for this breakfast cake recipe, enough to make 2 cups of thin slices. The red color is beautiful, but green rhubarb will give you wonderful flavor too.
- rhubarb
- fresh is best but you can use frozen sliced rhubarb if you have it. If you do use frozen rhubarb, don’t thaw it first or it can become soggy.
- butter
- I always bake with unsalted butter. If you only have salted on hand, just leave out the extra salt in the recipe.
- granulated sugar
- I sprinkle a little extra over the cake before baking which creates a light crunch to the crust.
- egg
- half & half, cream, or buttermilk
- use them interchangeably according to what you have in the fridge.
- all purpose flour
- baking powder
- salt
- lemon juice
- vanilla
- the vanilla and tart rhubarb make a wonderful flavor combo, but I also love it with almond extract, so use your favorite.
Rhubarb FAQs
Is rhubarb a fruit or a vegetable?
- Rhubarb is a tart vegetable (it’s part of the buckwheat family!) that we treat as a fruit in cooking. It grows in long leafy stalks, and kind of looks like red celery. The stalks can be harvested when very young, or when large and mature. Do not eat rhubarb leaves, they are poisonous. They contain oxalic acid, which is toxic to humans.
When is rhubarb season?
- Rhubarb season is April through June, but you’ll see if sooner and later in some areas. Rhubarb is one of the first veggies of spring.
Is rhubarb healthy?
According to Healthline…“Rhubarb is a good source of fiber and antioxidants. Studies show that rhubarb fiber may lower cholesterol.”
Rhubarb is low in calories and high in fiber, making it a great choice for those watching their weight or looking to improve their digestive health. It is also a good source of vitamin K, which is important for bone health.
Why is my rhubarb green?
- Rhubarb varies in color from deep crimson to pale green. Newer varieties, like my Cherry Red rhubarb, is bred for its sweet flavor and intense color, which is nice because that’s one of the things we love about rhubarb and it’s a big drag when the color doesn’t bloom in recipes. There is little difference in flavor between the green and red, but red rhubarb can be stunning when cooked.
How to cook rhubarb?
- Rhubarb can be cooked in a variety of ways, including stewing, baking, and poaching. It is often used in pies, crisps, and crumbles, as well as in sauces and jams. To cook rhubarb, simply cut off the leaves and the tough bottom end of the stalks, then chop them into small pieces and cook them with sugar until they are soft and tender. For cakes and muffins you use raw rhubarb, just slice the stalks to the size needed for your recipe.
Can you freeze rhubarb?
- Rhubarb freezes beautifully. Slice it and lay it out on a parchment paper lined baking sheet. Put the pan in the freezer and freeze until solid. Then transfer the rhubarb to a freezer style zip lock baggie or airtight container.
Do I need to thaw rhubarb before using?
- In most cases there’s no need to thaw the rhubarb when you want to use it for cooking, or baking, just use it frozen.
more rhubarb, please!
Rhubarb is such an unusual ingredient, and strictly seasonal, so I recommend grabbing it while you can.
- Perfect Rhubarb Muffins ~ these fabulous muffins have a light streusel topping.
- Rhubarb Bread ~ a tender quick bread loaded with rhubarb.
- Rhubarb Vanilla Bean Jelly ~ this easy jelly is a stunning color and makes a great gift for friends and neighbors!
- Old Fashioned Rhubarb Crunch ~ one of my faves!
- Ginger Rhubarb Crisp ~ the unique flavor and color of rhubarb is showcased in this easy dessert.
- Norwegian Rhubarb and Almond Cake ~ a lovely tea cake from Scandinavia.
“This recipe is perfection. We had it last night for dessert with ice-cream. This morning we had it with butter for breakfast. It was so fast and easy to put together. You have given me another keeper. Thank you for sharing it with us.” ~Leslie
Rhubarb Cake
Video
Equipment
- 9×9 square baking pan
Ingredients
- 1/2 cup half and half, cream, or buttermilk
- 1 tsp lemon juice
- 1/2 cup unsalted butter at room temperature
- 1 cup granulated sugar plus 2 tsp for sprinkling
- 1 large egg, at room temperature
- 1 1/2 tsp vanilla extract
- 2 cups all purpose flour, saving out 1 Tbsp to toss with rhubarb
- 2 tsp baking powder
- 1 tsp salt
- 2 cups thinly sliced rhubarb
Instructions
- Preheat the oven to 350F Lightly butter a 9×9 square baking pan. I like to line the pan with parchment paper with overhanging ends so I can easily lift out the cooled cake for cutting. That's optional.
- Stir the lemon juice into the half and half and set aside.
- Cream the soft butter and sugar in a stand mixer, or with electric beaters, until fluffy and pale yellow. Beat in the egg and vanilla, scraping down the bowl as necessary.
- Take 1 Tbsp of the flour to the rhubarb and toss well.
- In a separate bowl whisk together the remaining flour, baking powder, and salt.
- Add half of the flour mixture to the bowl and blend in. Add all of the half and half, and blend in. Finally add the rest of the flour and blend just until combined, don't over mix. Fold in the rhubarb. Note: the batter is on the thick side.
- Spread the batter into the prepared pan and sprinkle the top evenly with a little sugar. Bake for about 40-45 minutes, or until the cake is turning golden and a toothpick in the center comes out without wet batter clinging to it (moist crumbs are fine.)
- Let the cake cool slightly before cutting.
Notes
- Other fruit like berries work beautifully in this rhubarb breakfast cake. Also try chopped banana.
- Mix the topping sugar with a touch of cinnamon for a hint of spice.
- For a lower fat option try buttermilk in place of the half and half and lemon. Half Greek yogurt and half milk would work, too.
OMG delicious. I used brown sugar and cinnamon on top. So moist tart wonderful. Had friend who tried it and declared he is going to plant rhubarb now
Nice idea to use cinnamon 🙂 and everybody should have a rhubarb plant in their yard!
I made this today since I had rhubarb in my CSA this week & I’ve never cooked or baked with it before. It was delicious! I only ended up using 1 1/2 tsp of sugar sprinkled on top since that seemed to cover it enough. My kids prefer “icing” on things so after it came out of the oven, I ended up drizzling just a little bit of icing I made with a tablespoon of powdered sugar, 2tsp milk & drop of vanilla. It was definitely not needed since this was moist & sweet enough without it but made it extra appealing to the kids to at least try. They weren’t the biggest fans of it, but I think that’s just because they don’t seem to care for any kind of cooked “berry type” texture. I will definitely make this again with the rest of the rhubarb I froze from my CSA, but I won’t be making any icing to drizzle on it & I’ll share it with friends at a brunch or other social gathering instead of with my kids!
hi! I just got some beautiful rhubarb from my neighbour and am looking forward to trying this recipe! HOwever, we don’t drink cow milk here. Would Oat milk be ok do you know? Should I still add lemon juice to it? Thanks in advance! 🙂
Should be just fine!
What a great recipe for rhubarb and very easy to make! My husband and I took a bite after baking today and both of us said “Wow” this is really good! Thanks for recipe–I pinned it:)
Hi, Can I use 2% Lactaid Milk instead of the half/half? Thanks Lorraine
I haven’t tried that, but it should be fine.
I have made this 3 times now. Delicious each time! I would give it 5 stars but technology will only let me mark it at 3 Boo. Anyway, I have cut down on the sugar by about 1/4 cup and I don’t sprinkle any on the top either. I also have greased the pan and then “floured” the bottom with cinnamon which adds a really nice finish
Thanks so much for the nice review Lida, I’ve been dealing with the star rating glitch all day, I guess it’s a good problem to have, so many people wanting to rate my recipes 5 stars! I changed your rating 🙂
would I be able to double this recipe and use a bundt pan instead?
I haven’t tried this batter in a bundt pan so I’m not sure, but yes, you could double the recipe if you have a large bundt pan.
I cooked rhubarb for a first time and loved that the recipe was simple and easy to follow.
The result was a delicious cake and the whole family enjoyed the result. Thank you!
I’m so glad to hear it Dobrinka 🙂
I’m making it again, Sue 🙂 Delicious every time!
Easy to make, Ideal recipe for disorganised idiotic men
Hiya! Looking forward to making these shortly for my coworkers. How long do they usually keep fresh for you? Thanks!
Just a couple of days Katie. I suggest making it as close to enjoying as you can.