Easy Rhubarb Sauce Recipe
This rhubarb sauce is easy to make and will keep well in the fridge for a week. Rhubarb sauce is a delicious way to dress up a waffle, pancake, or even a bowl of yogurt. This is another one of my classic go-to recipes for rhubarb; it’s just stewed rhubarb that you can eat on its own or add as a topping.
If you want to make this a very low-calorie topping, you can swap out the sugar for Splenda.
Now that we have a garden with our own rhubarb plant, I can share more simple ways to use up rhubarb. If you don’t have your own, I bet during rhubarb season you can find some from a neighbor for free.

Rhubarb Sauce Ingredients
This rhubarb sauce recipe only has three ingredients. Making it very easy to make.
- 4 cups prepared rhubarb
- 1 cup granulated white sugar (or 1 cup Splenda)
- 1/2 cup water

How to Prepare Fresh Rhubarb
Once your rhubarb is harvested, cut off the large leaves and trim the ends. Wash the stalks well, then slice them into chunks about 1 inch long.

Note: You can use frozen rhubarb instead of fresh as long as it’s cut into chunks. There’s no need to thaw it ahead of time — just place it in the pot and continue with the cooking.
How to Make Rhubarb Sauce
Place the rhubarb, sugar (or Splenda), and water in a saucepan. Cook over medium-high heat, stirring occasionally, until the mixture comes to a boil. Reduce the heat to medium-low and simmer uncovered for about 10 minutes, stirring now and then.

As your rhubarb cooks, you may notice foam rising to the top. If this happens, skim the foam off using a spoon.
Rhubarb can vary in sweetness, so taste as it cooks and add more sugar if needed. You can also add a little cinnamon or vanilla if you like, but I usually leave it plain.
If using Splenda, taste test and add more as needed.
Let the rhubarb sauce cool completely before serving.
How Long Does Rhubarb Sauce Keep?
Rhubarb sauce keeps well in the fridge for up to one week. I like to store mine in a mason jar. You can also freeze it for up to six months. When freezing, leave about ½ inch of space at the top of the container to allow for expansion.
Serving Rhubarb Sauce
You can eat this sauce on its own, we used to call it stewed rhubarb. Hubs eats the rhubarb sauce just as it is, but I prefer to serve it on top of pancakes, waffles, or ice cream, or layered in a glass jar with yogurt and granola.

Easy Rhubarb Sauce
Ingredients
- 4 cups prepared rhubarb washed, and cut into 3/4 inch slices
- 1 cup granulated white sugar or 1 cup splenda
- ½ cup water
Instructions
- Once your rhubarb is harvested, cut off the large leaves and trim the ends. Wash the remaining stalks well and then slice into chunks about 1 inch long.

- Heat sugar, rhubarb, and water stirring occasionally over medium-high heat until boiling. Once it starts to boil turn the stove down to medium-low and simmer uncovered for ten minutes, stirring occasionally. You can omit the sugar for Splenda.

- As your rhubarb cooks you may notice foam rising to the top. If this occurs skim the foam off using a spoon.
- Rhubarb can vary in sweetness, while cooking taste the rhubarb and add more sugar if needed. You can add a bit of cinnamon, or vanilla to the mixture if you want to.
- You can eat this sauce on its own, we used to call it stewed rhubarb. Or serve as a topping for pancakes, waffles, ice cream, or layered in a glass jar with yogurt and granola.

- If making it sugar free with Splenda. Taste and add more if needed for flavour.
Notes
- Rhubarb varies in sweetness, so taste and adjust sugar as needed.
- Frozen rhubarb can be used without thawing.
- Leave headspace when freezing to allow for expansion.
Rhubarb season always goes by quickly, and this easy rhubarb sauce is a great way to make the most of it. You can also make it with frozen rhubarb, so it’s a simple topping to keep on hand for breakfasts and desserts all year round.

Other Amazing Rhubarb Recipes
As a Mom on my own with three sons, everyone knew I could use free products. Over those years I received loads of much-appreciated free rhubarb and to this day my grown sons all love anything rhubarb.

Rhubarb Crisp Recipe
This rhubarb crisp recipe is always popular, especially when served warm with ice cream. Its an easy to make recipe that you can easily double to feed a large group.

Rhubarb Muffins with Sour Cream and Streusel
These simple rhubarb muffins have a crunchy streusel top and extra tang from sour cream. This is one of my most popular recipes.

No Bake Strawberry Rhubarb Cheesecake
This strawberry rhubarb cheesecake is very smooth and light with the classic pairing of strawberry and rhubarb. Its a bit different and a new way to try rhubarb in your baking.

Rhubarb Simple Syrup
This rhubarb simple syrup recipe is delicious was pancakes, waffles or you can mix it in a beverage. Its another great way to enjoy the tangy sweet taste of rhubarb.

Can’t wait to try this at home.