Food Recipes Sauces, Condiments and Preserves Jams Sweet Onion Jam Be the first to rate & review! Grenadine helps sweeten the jam and adds vibrant red color. The jam is great with most meats, especially grilled or roasted pork.Plus: More Vegetable Recipes and Tips By John Fleer Updated on March 29, 2015 Rate Print Share Yield: 1 cup Ingredients 1 tablespoon unsalted butter 2 medium Vidalia or other sweet onions, cut into 3/4-inch dice (about 2 1/2 cups) 1/2 cup sugar 1/3 cup dry red wine 1/3 cup red wine vinegar 1/3 cup grenadine Salt Directions Melt the butter in a medium skillet. Add the onions and cook over moderate heat, stirring, until soft and just translucent, about 8 minutes. Add the sugar, wine, vinegar, grenadine and a pinch of salt. Cook over low heat, stirring, until the liquid thickens and coats the back of a spoon, about 35 minutes. Transfer the onion jam to a bowl and let cool. Make Ahead The onion jam can be refrigerated for up to 5 days. Let return to room temperature before serving. Originally appeared: August 1997 Rate It Print