Here's an old-fashioned but wonderfully refreshing use for rhubarb so you can be all ready for a summer of rhubarb gin-and-tonics (with a squeeze of lemon, please).Ingredients:Produce:1 lb RhubarbBaking &amp; Spices:1/2 cup SugarDrinks:1 splash Club sodaBeer, Wine &amp; Liquor:3 1/2 cups Gin3 tbsp Grand marnierOther:3 Wide strips orange zest