Slice the cucumbers to the desired thickness.
Combine the vinegar, sugar, salt, cinnamon, mace, whole cloves, and green food coloring (if using) in a large pot. Boil the combination for 10 minutes to make the syrup.
Strain the syrup and then pour it over the sliced cucumbers, the cucumbers should be covered by the syrup.
Place the strained materials in a container in the fridge for later use.
Let the cucumbers stand in the syrup for 24 hours.
For the next 3 days drain the syrup for the cucumbers, add back in the strained materials, boil for 10 minutes, then pour over cucumbers again (the cucumber will spend a total of 4 days in the syrup).
At the end of day 4 of the syrup soak the pickles are done. Seal the jar for storage.