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Start by searing the beef in a hot skillet with oil (be careful!). This helps to begin the cooking process and sear the beef which brings out the flavor.
Place the beef roast in the slow cooker and sprinkle with salt, pepper, and Italian dressing mix. Pour in beef broth and 1/2 of the jar of pepperoncini peppers with juice, reserving the rest of the pepperoncini peppers to place on the sandwiches. Cook on low for 8 hours. Once it is done cooking, shred with two forks.
When the beef is almost ready, prepare the caramelized onions. Add 4 Tablespoons of butter, reserving the other 4 Tablespoons for the buns, to a skillet on medium-low heat. Add sliced onions and cook low and slow for about 15-20 minutes, stirring often until the onions are softened and a golden brown color. If the onions are browning too quickly, you can always reduce the heat.
To prepare the hoagie buns, spread the remaining butter on each side. Place in the oven to toast on broil for 2-3 minutes (watch carefully). This helps to create a barrier to keep the sandwiches from getting soggy.
To prepare sandwiches, top each hoagie bun with a generous amount of beef. Place slices of provolone cheese on each bun. If the beef is hot, it should melt the cheese. If not, you can place the sandwiches under the broil setting in the oven to melt the cheese.
Top with caramelized onions and remaining sliced pepperoncini peppers. Serve warm. May serve with au jus for dipping.
Calories: 735kcal, Carbohydrates: 8g, Protein: 56g, Fat: 54g, Saturated Fat: 28g, Polyunsaturated Fat: 4g, Monounsaturated Fat: 22g, Trans Fat: 2g, Cholesterol: 223mg, Sodium: 1044mg, Potassium: 1081mg, Fiber: 3g, Sugar: 3g, Vitamin A: 1090IU, Vitamin C: 64mg, Calcium: 352mg, Iron: 6mg
Nutrition information is automatically calculated, so should only be used as an approximation.
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