Christmas Dutch Mustard Pickles

2 qts cucumbers, peeled and cut up
1 qt small pickling onions, peeled
1 qt large onions, trimmed, peeled and cut up
1 large head cauliflower, cut up
2 sweet red peppers (for Christmas coloring)
1 cup salt
1 gal water

Soak vegetables overnight in brine. Bring to a boil then drain. Pour dressing over, bring to a boil, simmer 15 min. Pack in clean hot jars, seal. Process in boiling water bath for 30 minutes.