I just finished making this sorbet and it is delicious. I'm not sure how many g or how long a stalk of rhubarb usually is... Our rhubarb at home is growing like crazy, with some stalks up to 70cm long. I still used the 5 stalks of Rhubarb and I checked the weight, it was 490g. I didn’t add any strawberries.
I boiled the rhubarb one evening, let in cool in the fridge overnight and the next morning I pureed it in the blender but I didn’t bother to strain the mixture or re-chill it. I then churned it in my ice cream maker & it was really quick, it only took about 10-15min (it usually takes me 20-30min in my KitchenAid ice-cream attachment). The only thing is, although I’m a sweet tooth I thought the end result was a bit too sweet, next time I’ll try less sugar, maybe reduce it to 3/4-1 cup.