Rhubarb Crunch

Updated on
May 26, 2026

Simple recipes with minimal ingredients let the seasonal fruit flavor shine. As per usual, I short all the sugar with results that let the rhubarb be what it's supposed to be - tart and delicious, not overly-sugary doctored to become sweet.

Rhubarb Crunch

For the crust/topping:
1 cup flour
3/4 cup oatmeal
1 cup brown sugar (slightly short)
1 tsp cinnamon

Mix together until crumbly. Press half into the bottom of 8x8 pan; reserve half for topping.

For the filling:
4 cups rhubarb, diced
1 cup white sugar (slightly short)
1 cup water
1 tsp vanilla
2 tbsp cornstarch

Combine and cook over low/medium heat until thick and transparent. Pour over crust.

Top with remaining crumbles and bake at 350 degrees for 1 hour. Serve with whipped cream or vanilla ice cream.

Optional: add half a 3 oz packet of flavored strawberry gelatin (whole packet would be too much)

Recipe origin: No idea! But it's written in my recipe book, which means I've made it and liked it enough to write it down and make it again.

Rhubarb Crunch - Even better when served with ice cream on your Great Grandmother's German dishes.

RHUBARB, the springtime vegetable that cooks up like fruit. It's a perennial plant that explodes early and is commonly found on old farmsteads. You just pull these incredibly sour stalks right up out of the ground (don't break them off). Do cut the leaves off (they are considered toxic), trim the ends, wash and dice. Some say you need to peel the outer layer off, but it's not necessary. Just make sure you have a sharp knife and you can dice a big pile of rhubarb in no time.

Some favorite rhubarb recipes include:

Collective and its contributors aren’t responsible for how any recipe turns out for you, whether from our site or linked to other sources. Cooking can be unpredictable—so follow at your own risk, tweak as needed, and have fun with it! 

Originally Published:
May 26, 2026
Steph Tvrdik

Steph Tvrdik, Director of Collective.guide, is a farmer’s wife, mom of two boys and an entrepreneur who cares about our community and our world. She loves the Lord, loves to garden and has a heart for helping people, both personally and professionally.