Jun 09 2026
RestaurantsThe Rockhill GrillePrime Rib Sandwich Recipe

Prime Rib Sandwich Recipe

Time1h
Serves4

caramelized onion cream cheese, au jus, rustic baguette, housemade chips

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Ingredients

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Caramelized Onion Cream Cheese

Sandwich Assembly

Housemade Chips

Method

Caramelized Onion Cream Cheese

  1. 1

    Prepare the Onions

    Slice the yellow onions thinly. In a large skillet, melt the butter over medium heat. Add the sliced onions and salt. Cook for about 15-20 minutes, stirring occasionally, until the onions are caramelized and golden brown.

  2. 2

    Mix the Cream Cheese

    In a bowl, combine the softened cream cheese, caramelized onions, pepper, and thyme. Mix until well blended. Set aside.

Au Jus

  1. 3

    Combine Ingredients

    In a small saucepan, combine the beef broth, soy sauce, Worcestershire sauce, garlic powder, and pepper. Bring to a simmer over medium heat.

  2. 4

    Simmer

    Allow the au jus to simmer for about 10 minutes, stirring occasionally. Remove from heat and set aside.

Sandwich Assembly

  1. 5

    Prepare the Baguette

    Slice the rustic baguette in half lengthwise. Lightly toast both halves if desired.

  2. 6

    Assemble the Sandwich

    Spread a generous amount of the caramelized onion cream cheese on one half of the baguette. Layer slices of roasted prime rib on top of the cream cheese, followed by a handful of fresh arugula. Close the sandwich with the other half of the baguette.

Housemade Chips

  1. 7

    Prepare the Potatoes

    Wash and slice the russet potatoes thinly using a mandoline or sharp knife.

  2. 8

    Fry the Chips

    In a large skillet, heat the olive oil over medium-high heat. Add the potato slices in batches and fry until golden brown and crispy, about 3-4 minutes. Remove from oil and drain on paper towels. Sprinkle with salt immediately.

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