Homemade Real Giardiniera
This pickled vegetable condiment is the real deal for topping Chicago-style Italian beef sandwiches--or anything else, says celeb chef Jeff Mauro, who shares his recipe in his new cookbook, Come on Over (William Morrow, $30). Note that it's lightly fermented, so should be made about three days ahead.
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Make sure to sterilize jars in boiling water 10 minutes, then air-dry completely. Prepare the lids by either washing them by hand in soapy water or putting them in a bowl and covering them with boiling water.