Cream the butter and brown sugar together in a medium mixing bowl, using an electric mixer on medium speed, until light and fluffy. Add the eggs, one at a time, beating well after each addition. Sift the flour, baking powder, salt, cinnamon and cloves together. Gradually stir into the creamed mixture. Stir in the raisins, candied fruit, dates and walnuts. Drop the mixture by teaspoonfuls, about 5 cm apart, on greased baking sheets. Bake in a preheated 190ºC . oven for 8 to 10 minutes or until golden brown. Remove from the baking sheets and cool on wire racks. Frost with Vanilla Icing when completely cool. Makes 3 dozen. VANILLA ICING: Combine all of the ingredients in a small mixing bowl and beat until smooth.