Fresh oxalic acidity

Yeah, gardening season has started again. And our rhubarb bush is very generous. We're all rhubarb lovers over here. First I tried this French rhubarb cake. Divided the batter into two parts, one small cake to try and one to give away. We're going to make this one more often, because it was delicious. Another trial was the rhubarb ketchup. I cooked from this Dutch recipe, but when you google on 'Rhubarb ketchup' you'll find many recipes in English. I tastes more like barbecues sauce, but very good. Would add less sugar next time though.