Jamaican fruit cake

INGREDIENTS: 12 ounces flour 3 teaspoons baking powder 9 ounces seedless raisins, cut in half 2 ounces citron, diced fine 3 ounces mixed peel, diced fine 4 ounces crystallized cherries, cut in quarters 2 ounces chopped nuts 2 limes, grated rind only 10 ounces butter, softened 8 ounces extra fine granulated sugar 6 large eggs [...]