Tart cranberries and a rich, chocolaty crust offer a festive and tangy twist on a classic. Yield: 10 servings (cost per serving of $1.48) In a medium sauce pan, combine the cranberries, raspberries, orange zest and juice, and 1/4 cup sugar. Simmer, stirring occasionally, until the cranberries burst and the sauce thickens, 5 to 7 minutes.