No-Cook Refrigerator Pickles
["7 c. thin sliced cucumbers with rind, green tomatoes or zucchini", "1 c. sugar", "1 c. onions, sliced", "1/4 c. apple cider vinegar*", "3/4 c. white vinegar*", "1 Tbsp. salt", "1 tsp. celery seed"]
["*Or, use 1 cup white vinegar."]
["cucumbers", "sugar", "onions", "apple cider vinegar", "white vinegar", "salt", "celery"]