A recipe for Roasted Rhubarb and Marzipan Tart has our mouths watering. The recipe appears in the Daily Mail from the UK. Rhubarb is starting to arrive in local markets. Here is a delectable and little fuss way to use it. Use either our Almond Paste or Marzipan in this recipe. The Almond Paste will be a little less sweet and perhaps more to American taste.