Sift together dry ingredients except coconut sugar, oats and chocolate toffee and set aside. Cream butter and sugar together. Add egg, vanilla and water and mix until well blended. Add flour mixture and mix until just combined. Stir in oatmeal and chocolate toffee bits.
Cover cookie sheet with parchment paper and place rounded balls of dough about 3 inches apart on the sheet. Bake at 350°F for 10-12 minutes. Allow to cool before removing from sheet.