You will need:
2 lbs. firm apples cut into quarters
1/2 cup apple cider
1 1/2 cups packed dark brown sugar
2 tsp. ground cinnamon
1 tsp. ground cloves
1 tsp. ground allspice
Grated zest and juice of 1 lemon

Place the apples, cider and 1/2 cup water in a large saucepan over medium-high heat. Bring to a boil, reduce heat, and simmer until apples are soft, about 20 minutes. Remove from heat and pass through a food mill. Return to saucepan and add the brown sugar, cinnamon, cloves, allspice, lemon zest and lemon juice. Cook over low heat and stir occasionally, until very thick and dark brown, about 2 to 3 hours. Cool completely. Store in an airtight container and refrigerate up to 2 weeks.