Strawberry Rhubarb Bars or ‘squares’, depending on what part of the world you hail from, are a country-kitchen favourite. In New Brunswick, rhubarb comes into season weeks before the strawberries are ripe. Given that strawberry rhubarb is such a delicious combination, but the fruits aren’t available at the same time why not substitute strawberry flavoured Jell-O for the cornstarch. The jello would act as a thickening agent and flavour enhancer. I decided to play it safe by cutting back on the strawberry jello and using a bit of cornstarch. I wanted to minimize any artificial flavour. It worked!
These bars have just the right amount of tart and sweet worthy of the title Strawberry Rhubarb Bars.
I know it’s unthinkable that I cheated with strawberry jello powder but don’t judge me before you try these deliciously scandalous squares.
It all started innocently enough. As I stood in my kitchen, armed with fresh strawberries and the last of my tart rhubarb, an insidious shortcut idea popped into my head.
Why not sub out the strawberries and cornstarch for jello? What started out as a lark worked like a charm.
We’re all settled into the farm for the summer. This is the time of year we entertain most weekends inviting friends and family to enjoy our little piece of heaven. When the weather cooperates there’s nothing I love more than dining al fresco at a beautifully adorned table, with simple food and drink, on a glorious summer night.
STRAWBERRY RHUBARB BARS
Makes 9×13 pan
FILLING
3 cups fresh rhubarb, sliced in ½ “ pieces
2 tablespoons cornstarch
1 ¼ cups sugar
¼ cup water
1 small package strawberry Jell-O
THE STEPS:
- Dissolve cornstarch in water
- Place all ingredients in a sauce pan over medium high heat and cook til thick.
CRUST
1 ½ cup oatmeal
1 ½ cup flour
1 teaspoon baking powder
1/2 teaspoon soda
¼ teaspoon salt
1 cup brown sugar
½ cup butter
THE STEPS:
- Whisk together flour, baking powder, baking soda and salt in a mixing bowl.
- Stir in brown sugar.
- Using a pastry blender, cut in butter until the mixture resembles a coarse meal
- Pat ¾ of crust mixture into a 9 x 13 inch pan.
- Pour rhubarb mixture over top.
- Sprinkle remaining crumb mixture over the top.
- Bake at 350 degrees for 35 minutes.
- Cool completely.
- Cut into squares.
Thanks for reading.

Ingredients
FILLING:
3 cups fresh rhubarb, sliced in ½ “ pieces
2 tablespoons cornstarch
1 ¼ cups sugar
¼ cup water
1 small package strawberry Jell-O
CRUST:
1 ½ cup oatmeal
1 ½ cup flour
1 teaspoon baking powder
1/2 teaspoon soda
¼ teaspoon salt
1 cup brown sugar
½ cup butter
Instructions
FOR THE FILLING:
- Dissolve cornstarch in water
- Place all ingredients in a sauce pan over medium high heat and cook until thick, stirring often.
- Remove from heat.
FORTHE CRUST:
- Whisk together flour, baking powder, baking soda and salt in a mixing bowl.
- Stir in brown sugar.
- Using a pastry blender, cut in butter until the mixture resembles coarse oatmeal.
- Pat ¾ of crust mixture into a 9 x 13 inch pan.
- Pour rhubarb mixture over top.
- Sprinkle remaining crumb mixture over the top. Don't pat down.
- Bake at 350 degrees for 35 minutes.
- Cool completely.
- Cut into squares.
Notes
THE LOVE: Make sure you allow your bars to cool completely before slicing.
16 comments
What gorgeous pictures! I love the colors and the forget-me-nots! If i can find some rhubarb, i will try these.
Pity I am giving it away as I have too much!
That’s a nice problem!
Hi Cindy, Does rhubarb grow in Calgary? Try a farmer’s market…
Hi Michelle, yes rhubarb does grow in Calgary and I had a beautiful garden when I lived there, but I haven’t lived there for 5 years. We moved to Houston where rhubarb doesn’t grow and costs $7.99 lb in the stores when you can find it. Now we live in Denver. We inherited a scrawny little rhubarb plant here, and I’m trying to nurse it back to health!
My apologies! I thought you were in Calgary. Good luck with your rhubarb…
I would love to try this recipe, but I would need a substitute for oatmeal. Any suggestions?
Hi Carol, I’m not sure what you could substitute for the oatmeal. Sorry about that!
These look amazing, and just in time, fresh, New Brunswick rhubarb arrived on my doorstep from my neighbours!
Sounds like you’ve got great neighbours!
I just put these in the oven. I forgot to add the oatmeal
Oops! xoxox
Hi Michelle,
How long do you boiled the strawberry rhubarb filling?
Thanks!
Hi Manon, It will vary depending on the rhubarb. Boil the filled gently, stirring constantly until it’s quite thick. Good luck!
So yummy!!! Unfortunately the crumb mix has stick to the pan.
Maybe I should grease the pan next time.
Thank Michelle for the recipe!
Hmm…mine didn’t stick. I wonder why?