7 very lg. cucumbers, sliced (ones too big to eat)
2 gal. water
2 c. lime
1 c. and 2 c. cider vinegar
1 oz. red food coloring
2 tbsp. alum
2 c. water
2 c. vinegar
5 lb. sugar
4 to 5 oz. red hots
8 cinnamon sticks

 

Mix water, and lime in a large container (crock). Add sliced cucumbers, soak for 24 hours. Drain and rinse several times, then soak in ice water for 3 hours. Drain. Mix together 1 cup vinegar, food coloring, and alum, with enough water to cover cucumbers to simmer over medium heat for 2 hours. Drain and rinse. Throw this mixture away. Then boil together water, vinegar, sugar, and red hots, stirring constantly until red hots are melted. Pour over cucumbers, set over night. Next morning, drain mixture from cucumbers and save. Place cucumbers in jars, boil vinegar mixture and pour over cucumbers. Add 1 cinnamon stick to each jar. Seal and process for 5 minutes.
 

Source: http://www.nancys-kitchen.com