Prepare Apple Butter, using 5 pounds pears, quartered, After running the fruit through a food mill, stir in the sugar and lemon juice as directed, and substitute for the spices 2 teaspoons ground cardamom and 1 teaspoon ground ginger. Partway through cooking, puree with an immersion blender or in batches in a blender (pears are more grainy than apples, and this step results in a much smoother fruit butter). Continue to cook until thick and process as directed.