"Inspired by the traditional Cajun sandwich on the same-named flat, round bread, this layered sub is perfect for feeding a big crowd (especially when prepared on a 24-inch hoagie roll). What sets this sub apart is the addition of giardineria - the pickled vegetable relish - which nods to this sandwich's Italian roots. Be sure to make it two hours ahead so the fillings have time to soften the bread ever so slightly...."
INGREDIENTS
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3 cups drained giardineria, chopped, plus 1/2 cup giardineria brine
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1/2 cup pitted pimento-stuffed green olives, sliced
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1/2 cup pitted kalamata olives, sliced
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1/2 cup drained pepperoncini rings
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1/2 small red onion, thinly sliced
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1/2 cup loosely packed fresh parsley leaves, chopped
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1/4 cup extra-virgin olive oil
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1 garlic clove, finely chopped
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One 24-inch or two 12-inch soft hoagie rolls
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1/4 cup mayonnaise
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3/4 pound sliced provolone
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1/2 pound sliced mortadella
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1/2 pound sliced deli ham
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1/4 pound sliced Genoa salami