1 cup softened butter
1 cup brown sugar
1/2 cup molasses
1/2 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg
1/2 teaspoon ground cloves
1/4 teaspoon salt
4 large sweet potatoes, peeled and grated
1 teaspoon vanilla extract
2 eggs, beaten
1 (12 fluid ounce) can evaporated milk