INGREDIENTS
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5 pounds chuck roast (bone-in or boneless)
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2 tablespoons olive oil
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1 1/2 pounds diced onion, divided
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1 cup red wine, such as merlot (or beef stock if you prefer a non-alcohol option)
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4 large tomatoes, divided
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1/2 teaspoon black pepper
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1 1/2 tablespoons Italian herbs
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2 teaspoons sugar
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1/2 teaspoon celery salt
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1 1/2 tablespoons garlic powder
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1 teaspoon onion powder
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2 bay leaves
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6 sub rolls
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12 slices provolone cheese
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1/2 cup pepperoncini, stemmed and sliced