Strawberries and rhubarb need no further introduction on their own. But mixed together, their sweet and sour flavors become something totally new. The jam is delicious on toast, with ice cream or in pastries. In Sweden it is common to grow rhubarb and strawberries in your backyard garden. Traditionally, the season’s first strawberries are eaten om Midsummer Eve. Strawberries are one of the so-called “superberries” and are naturally rich in antioxidants.