Fruit Cake

3 cups whole-wheat flour
1 tsp mixed spice
1-1/2 tsp baking soda
3/4 cup margarine
3/4 cup sugar
1-1/2 cups currants
3/4 cup golden raisins
1-1/4 cups soy milk
1 tbsp lemon juice
Sift together flour, spice, and baking soda in a large bowl. Rub in the margarine until the mixture resembles bread crumbs. Add all the remaining ingredients and mix well. Leave the mixture overnight. Turn into a greased loaf pan, bake in 325 F oven for 2 hours. Freezes well.