Watermelon Walnut Currant Chutney

Name: Watermelon Walnut Currant Chutney
Ingredients: 4 cups watermelon, juiced; 2 cups watermelon rind (white part), diced small; 2 tablespoons apple cider vinegar; 1 ½ cups packed brown sugar; ½ medium white onion, sliced; 1 tablespoon minced garlic; ½ teaspoon nutmeg; ¼ teaspoon cloves, ground; 1 teaspoon lemon zest; 1 lemon, juiced; 2 tablespoons currants; 2 tablespoons roasted walnuts