INGREDIENTS
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One 3- to 4-pound boneless beef roast, your choice of cut (see Cook's Note)
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1 stick (8 tablespoons) butter
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1 package au jus gravy mix
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1 package dry ranch dressing mix, such as Hidden Valley
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Pepperoncini peppers, number to your liking, and a little juice
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Salt and freshly ground pepper, if desired