In a blender mix the dates and water until fully combined. Add the salt and the essential oil. Lastly, add theoat flour. Remove the dough from the blender and tramnsfer to a bowl. Chill in the fridge while preparing the filling.
For the filling, blend all ingredients until well combined.
Remove the dough from the fridge, press into the bottom and sides of the molds using your hands. Spoon in the filling leaving a bit of space. Freeze for 1 hour. Using a teaspoon of dough to close each bar.