Preheat the oven to 350°. Spread the almonds and walnuts on a baking sheet and bake for 4 minutes; stir in the pine nuts and bake for about 3 minutes longer, or until all the nuts are lightly toasted. Let the nuts cool, then chop them. Add the nuts, dates, cinnamon and cloves to the currants and wine and mix well. Stir in the remaining wine if the mixture is very stiff.