Learn how to make a delightful rhubarb blueberry sauce. This versatile recipe is perfect for a topping or ingredient in a wide range of dishes.
This summer, we are creating new recipes for rhubarb to use up what we have in our garden and our freezer.
We have been freezing the rhubarb for the past two summers and using it sparingly as we aren’t sure how to use it\
Learning how to grow rhubarb is probably as simple as growing spring onions or mint.
It seems pretty hard to kill a rhubarb plant as our plant just keeps on giving.
Rhubarb Health Benefits
I didn’t know this, but rhubarb is considered a vegetable. It was counted as a fruit after a court ruling in New York for regulations and duties.
It’s also good for constipation as it has laxative qualities.
One of our friends asked us last week if we were interested in rhubarb because she planted a few rhubarb plants years ago.

We politely declined because we were already struggling to eat ours up.
Growing Rhubarb
If you are a rhubarb lover, I’d suggest planting your own, although if you want to know the best place to plant rhubarb on your property, I can’t tell you that.
However, ours does well by the downspout and direct sunlight.
When it rains, it pours and waters our rhubarb plant nicely, although I take excellent care of my garden.
Maybe Katrina will give us the 101 on rhubarb planting one day, as I’m pretty sure she has some in her garden.
If you buy rhubarb at the grocery store, you may pay upwards of $3.99lb per season, and it’s not any cheaper in-season.
I also noticed that the rhubarb doesn’t look as fresh and crisp when you buy it at the grocery store as when you grow it yourself.
It doesn’t seem to enjoy sitting around too long as it ages fast, so we chop it into 1-inch pieces and immediately get it in the freezer.
Rhubarb is tart, so I dip it in sugar or salt to enhance the flavor.
Eating rhubarb is comparable to celery in texture but tastes nothing like it.
You can add sugar, honey, other fruits like I will today or any other product that might give you a bit of sweetness, like agave honey.
Add ground cloves, ginger, or cinnamon to enhance the flavors of the fruits.
Another Scottish neighbor says he just pulled his first crop of rhubarb and can’t wait until his wife makes sauce for his ice cream.
Blueberry Rhubarb Sauce

Mrs. CBB is not keen on rhubarb, so I need to fancy it up a bit.
She loves blueberries, so I decided to make a rhubarb blueberry sauce.
Traditionally, you may be familiar with strawberry and rhubarb recipes, but I wanted to try something different.
The rhubarb blueberry sauce is not too sweet and can be eaten right out of the bowl.
I used some frozen blueberries that I had in the freezer as well.
However, you could use fresh blueberries if they are in season.
Types Of Rhubarb Blueberry Sauce
This rhubarb blueberry sauce can be spooned on top of plain yogurt or oatmeal or used on toast instead of jam.
When served, make a homemade rhubarb blueberry sauce crisp and top with ice cream.
We made protein pancakes with rhubarb blueberry sauce and a dollop of whipped cream.
I added a scoop of protein to our Scottish pancake recipe, replacing the flour to learn how to make protein pancakes.
- Keto Crepes
- Potato Waffles
- Keto Chaffle Waffles
- Pillow Fluffy Pancakes
- Blueberry Cheesecake (use rhubarb-blueberry sauce instead)
- Eggless Pancakes
- Silver Dollar Pancakes
Use instant pancake mix and substitute a 1/2 cup of whey protein for pancake powder.
How To Use Blueberry Rhubarb Sauce

If you enjoy cranberry sauce with roast turkey, so why not make rhubarb sauce instead?
Turn this rhubarb blueberry sauce into a fruit-based BBQ sauce for pork, beef or chicken.
After a day in the refrigerator, the rhubarb blueberry sauce thickened so we could spread it on toast in the morning like a jam.
Don’t feel you need to eat the rhubarb blueberry sauce right away.
It’s been in our refrigerator for a few days, and the flavors, as does the consistency in thickness, seem to improve with time.
It would make a great filling for Nicola’s Oatmeal Jam Squares, a rhubarb blueberry pie, or a rhubarb blueberry crumble.
You could even spoon it over my blueberry cheesecake recipe instead of the simple, plain blueberry sauce I created.
Rhubarb Blueberry Sauce

- Recipe Type: Sauce
- Author: Mr.CBB
- Prep time: 5 mins
- Cook time: 20 mins
- Total time: 25 mins
- Serves: 6
If you enjoy the tastes of rhubarb and blueberries, you will enjoy pairing these fruits to make this lovely, versatile sauce.
Ingredients
- 3 cups of chopped fresh or frozen rhubarb
- 1 cup of fresh or frozen blueberries
- 1 cup of cold water
- 1/2 cup of sugar (or other sweetener)
- 1 tablespoon of lemon juice
Instructions
- In a pot, add your chopped rhubarb, blueberries, and water, then turn your stovetop to medium-high
- Mix in your sugar when the water starts to boil so it helps it to break down. If you find it too tart, add sweetness as you see fit.
- Cook until the rhubarb and blueberries are tender, about 20 minutes, to a sauce-like consistency. Add 1 tablespoon of cornstarch to equal amounts of water, then add the sauce and combine to thicken. (optional)
- Let it cool before eating, or enjoy it hot.
- It can be canned in a 250ml mason jar or refrigerated in containers until ready to use it. Freeze for up to 3 months.
Rhubarb Blueberry Sauce
Learn how to make a delightful rhubarb blueberry sauce. This versatile recipe is perfect for a topping or ingredient in various dishes.
Ingredients
- 3 cups of chopped fresh or frozen rhubarb
- 1 cup of fresh or frozen blueberries
- 1 cup of cold water
- 1/2 cup of sugar (or other sweetener)
- 1 tablespoon of lemon juice
Instructions
- In a pot, add your chopped rhubarb, blueberries, and water, then turn your stovetop to medium-high
- Mix in your sugar when the water starts to boil so it helps it to break down. If you find it too tart, add sweetness as you see fit.
- Cook until the rhubarb and blueberries are tender, about 20 minutes, to a sauce-like consistency. Add one tablespoon of cornstarch to equal amounts of water, then add the sauce and combine to thicken. (optional)
- Let cool or enjoy hot.
- It can be canned in a 250ml mason jar or refrigerated in containers until you're ready to use it. Freeze for up to 3 months.

Looks good MR.CBB!!! Quick and easy too! 🙂
It’s super easy Pat and it’s great on plain yogurt!
I wasn’t sure about the blueberries and rhubarb together but I made strawberry, rhubarb, blueberry jam and it turned out great!
It’s gorgeous mixed together.
I would think you could mix just about any fruit with rhubarb in a recipe and have it turn out delicious. This sauce does look good, I’ll have to see what I have in the freezer to use up with some rhubarb.
I tried growing rhubarb once a number of years ago but it ran into hubby weeding. There is a reason why he is not allowed in the garden unsupervised………. Not even a tough plant like this can survive being ripped out by the roots. Poor things.
Yes same with my wife.. she is not allowed to be weeding the garden unsupervised either lol.
Oh my goodness. These look delicious. Exactly what I don’t need to see right now! haha I am trying to kick these last 5 pounds.
These are healthy protein pancakes haha!
Looking good Mr CBB! Glad you enjoyed the pancakes too. I do the same as your neighbour must be a Scottish thing and I love it on butter biscuits when mum takes them over from Scotland too very yummy. Rhubarb and orange jam is good too!
That sounds great, never thought to make your biscuits and top it with that.. smart!