Ingredients: 3 stalks rhubarb, cut into 1/2-inch pieces 2-inch piece fresh ginger, thinly sliced 1 cup hot water 1 cup white wine vinegar (or distilled white vinegar) 1/2 cup sugar 1/2 teaspoon whole peppercorns 6 pieces whole cloves 1 piece star anise Optional additions: 1/4 cup…