Into a bowl, add in and mix the chopped Dates (3/4 cup), Baking Soda (1/4 teaspoon), and Water (3 tablespoon).
Into another bowl, mix together the Butter (150 gram), Caster Sugar (1/2 cup), and Brown Sugar (1/2 cup). Then add in the Egg (1) and mix everything until combined.
Add in and mix the Ground Cinnamon (1 teaspoon), All-Purpose Flour (1 cup), softened dates, and Old Fashioned Rolled Oats (3 1/2 cup).
Take tablespoons of the mixture and form it into a bowl shape, and place each of the balls onto a baking tray. Bake under 350 degrees F (180 degrees C) for about 12 minutes.
Let the cookies cool, and serve!