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Thai Marinated Flank Steak with Low Carb Peanut Dipping Sauce

This Thai marinated flank steak is an easy low carb dinner that the family will love. Just marinate the flank steak in the morning and pan fry before dinner. Serve with a spicy low carb peanut dipping sauce that you can make in minutes.

Course Main Course
Cuisine Thai
Keyword dipping sauce, flank steak
Prep Time 4 hours
Cook Time 15 minutes
Total Time 4 hours 15 minutes
Servings 6
Author Denise


Thai Marinade

  • 2 lb Flank Steak
  • 4 teaspoon Thai curry paste
  • 1/2 cup Lakanto golden sweeteenr
  • 1/2 cup soy sauce
  • 4 tablespoons rice wine vinegar
  • 1/4 cup oil
  • 1/4 cup fresh basil, chopped

Low Carb Peanut Dipping Sauce

  • 6 tablespoons Sunflower Seed Butter
  • 1 teaspoon Thai curry paste
  • 3 tablespoons soy sauce
  • 3 tablespoons lime juice
  • 2 teaspoons sesame oil
  • 1/4 cup water
  • 1 tablespoon Lakanto golden or brown sugar sweetener


  1. Very lightly score the flank steak with a sharp knife ot make a criss cross patter on both sides. Make sure not to cut through the steak.

  2. Mix all the ingredients for the marinade and pour 1/2 into a large baggie along with the flank steak. Place in the refrigerator for 4 hours. Store the rest of the marinade in the refrigerator too.

  3. Whisk together all the ingredients for the peanut dipping sauce and refrigerate until ready to use.

  4. To cook the flank steak, heat up a large cast iron skillet to medium high heat. Take out the flank steak but reserve the marinade. Brown the flank steak on both sides for 5-7 minutes for a rare steak.

  5. While cooking the flank steak, pour the marinade from the baggie and other half in the refrigerator. Bring to a boil and simmer for 5 minutes.

  6. Let the steak sit for 10 minutes then carve. Pour the sauce over top and serve with dipping sauce.