Mix dry ingredients together in a bowl. In a cup, mix together water and bicarb. Melt butter and syrup together then remove from heat and mix in water until it foams. Pour over dry ingredients and mix well. If need, you can add another tbsp of water if it isn't coming together nicely. Roll into balls and bake in a slow oven (160 deg cel). Grandma suggests 15 min, but it depends on the size of your biscuits and your preference for chewy/crunchy. Just golden for chewy, nicely browned for crunchy.