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Brown Sugar Steak Kabob Marinade - Healthy Summer Grilling!

These steak kabobs are so flavorful and tender! Brown sugar in the marinade is one of the key ingredients, and helps the meat and vegetables caramelize while cooking.
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Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes
Servings: 4
Author: Lauren Greutman


  • 16 oz. of sirloin steak
  • Kosher salt
  • Black pepper
  • 1 Green Pepper
  • 1 Yellow Pepper
  • 6 Baby Portobello Mushrooms
  • Cherry Tomatoes
  • For the marinade:
  • 1 1/2 cup steak sauce
  • 1/3 cup brown sugar
  • 2 Tbsp spicy brown mustard
  • 1 tsp garlic powder or granulated garlic
  • 1 Tbsp soy sauce


  • Season the steak with salt and pepper.
  • (optional) Using a jaccard-type meat tenderizer, score the meat numerous times in 2 directions.
  • Cut steak into approx 1/2" - 1" cubes.
  • Whisk together all marinade ingredients in a bowl, set 1/2 cup aside.
  • And add the cubed steak to the remaining portion, coating all sides.
  • Let marinade for at least 4 hours, preferably overnight.
  • Cut peppers and mushrooms into 1" - 2" chunks.
  • Place the vegetables and meat on skewers as desired.
  • Cook on a hot grill for 8-12 minutes (depending on desired level of doneness), brushing the kabobs with the 1/2 cup of marinade set aside as the kabobs are turned/flipped on the grill.