I always associate rhubarb with Summers at my Nana and Papa’s; they’d pick a fresh stalk of rhubarb and hand it to me with a small dish of sugar to dip the end in. Nana would make what she called ‘Rubarberry,’ a sauce of strawberries, rhubarb, and sugar that she and Papa loved to have on toast. And Papa tried his hand at Rhubarb wine, along with his other wine-making experiments (his mainstay was the sweet red wine that bubbled in demijohns in his basement throughout the Autumn). Strawberry-Rhubarb Pie has always been a favourite of mine, but somehow I never did get around to making it until this Spring,…