1/2 cup raisins or currants
Melt butter in heavy medium skillet over medium-high heat. Add brown sugar. Cook until thick grainy sauce forms, about 1 minute. Mix in apples and raisins / if using/ Cook until apples are tender and sauce is reduced to glaze, tossing often, about 7 minutes. Mix in all grated peel and spices. Cool filling at least 30 minutes, or until room temperature.