Add chopped dates to boiling water and boil 5 minutes. Sift together in mixing bowl the Multi Blend Flour, baking powder, baking soda and salt. Set aside. In a second bowl, beat the eggs well. Mix in the honey, oil, vanilla extract and banana. Add dry mixture to the liquids and mix together. Add the dates and nuts (sunflower seeds), mixing lightly. Pour batter into an oiled 23 cm x 23 cm baking pan and bake 30 minutes in 180ºC . oven. Test for doneness. Topping (optional): Heat together quarter cup honey, quarter cup butter, and half cup unsweetened coconut. Spread on cake.