I hope this is the one.
4 qts. pepper
1 1/2 cups canning salt
4 qts, water
1/4 cup sugar
2 tbsp. prepared horseradish
2 cloves garlic
10 cups vinegar
2 cuups water

Dissolve salt in 4 qts. water, cut slits in peppers, and pour salt water over and soak 12 to 18 hours. Drain, rinse, and drain throughly. Combine remaining ingredients in large sauce pan and simmer 15 minutes. Remove garlic. Pact peppers in hot jars, leaving 1/4 inch head space. Bring pickling liquid to a boil. Pour hot liquid over peppers, leaving 1/4 head space. Remove air bubbles. Adjust caps. Process half pints and pints in boiling water bath for 10 minutes.