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The steak frites sandwich prepared and ready to serve.
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4.80 from 5 votes

Steak Frites Sandwich

Steak Frites Sandwich for a delicious way to enjoy the best of steak and freshly fried French fries all in one bite!
Prep Time30 minutes
Cook Time1 hour
Total Time1 hour 30 minutes
Course: Lunch, Main Course
Cuisine: American
Servings: 4 People
Author: Derek Wolf




  • 2 Russet Potatoes cut into fries
  • Kosher Salt as needed
  • 1 qt Beef Tallow

Garlic Horseradish Beefonnaise:


  • Ciabatta Bread
  • Sliced Cheese
  • Chimichurri



  • Spray your steaks with South Chicago Packing Beef Tallow Spray and generously season with salt, pepper and garlic powder. Set in the fridge until ready to cook.
  • Preheat a fire for medium high heat (about 375F).
  • Add your steaks to the grill and cook for 3-4 minutes per side or until they are 120F.
  • Once the steaks are done, pull off and let rest for 10 minutes. Finally, slice your bread in half and toast it up over the fire.
  • Once rested, slice up your filets and keep warm until serving.


  • Begin slicing your potatoes with a mandolin to a thin fry shape. Set the sliced fries into an ice water bath.
  • Preheat a fire for medium high heat (about 375F). Add a dutch oven or a deep skillet to the fire to preheat.
  • Add enough South Chicago Packing Beef Tallow to the skillet to be 1.5” high and heat up till 350F.
  • Carefully add your thin cut fries to the oil to fry for only 2-3 minutes until golden brown. Do this in batches so as not to overcrowd the skillet.
  • Finally, pull the fries out and pat dry. Season with kosher salt and keep warm until serving.

Sandwich & Sauces:

  • Add all your ingredients to a bowl for the Garlic Horseradish Beefonaisse and blend with an immersion blender until smooth. Set in the fridge until serving.
  • For the sandwich, start with some of the Garlic Horseradish Beefonaisse, sliced steak, chimichurri, handful of fries, melted cheese and more beefonaisse on the top bun. Serve and enjoy!



Serving: 4g | Calories: 2535kcal | Carbohydrates: 25g | Protein: 28g | Fat: 269g | Saturated Fat: 202g | Polyunsaturated Fat: 9g | Monounsaturated Fat: 45g | Trans Fat: 0.1g | Cholesterol: 166mg | Sodium: 2744mg | Potassium: 848mg | Fiber: 3g | Sugar: 1g | Vitamin A: 163IU | Vitamin C: 8mg | Calcium: 56mg | Iron: 4mg