Juicy 2-Ingredient Flank Steak Recipe Melts in Your Mouth by Donna John

Juicy 2-Ingredient Flank Steak Recipe Melts in Your Mouth

The fumes from the blender may make your eyes tear up like you're watching a sad movie. But once you taste the end result – a juicy and tender flank steak – they'll turn to tears of joy. Trust me!

Somehow, just onion and water makes a flank steak flavorful and tender. Put the cut-up onion and water into a blender and blend the heck out of it until it is liquid. Pour the onion over the steak and it it marinate at least one hour. When ready to cook the steak, remove it from the onion marinade and season with salt and pepper. Grill the steak on an outdoor or indoor grill until it reaches your desired doneness. You could also pop the flank steak under the broiler.

If you're not a flank steak fan, try this two-ingredient marinade on ribeye, sirloin or your favorite cut of beef. Serve this easy flank steak on steak night with your favorite side dishes.

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Cuisine: American
Prep Time: 1 hour to marinate
Cook Time: 10 to 15 minutes
Total Time: 1 hour plus 15 minutes

Servings: 3 


  • 1 onion, cut up
  • 1 flank steak (about 1 pound)

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Recipe Notes

  • I like to marinate meat in food storage bags, but you could also use an airtight container or shallow baking dish.
  • Love garlic? Add a clove or two into the blender with the onion.

Here's how to make it:

  1. Put the onion and 1/2 cup water into a blender. Blend together well.
  2. Pour the onion over the steak. Allow to marinate at least 1 hour.
  3. Remove steak from the marinade and season with salt and pepper. Cook on a hot grill until desired doneness. Allow to rest 5 minutes before slicing.

Nutrition Facts Per Serving

Calories: 687

Total Fat: 28g

Saturated Fat: 12g

Cholesterol: 200mg

Sodium: 261mg

Total Carbohydrate: 1.6g

Dietary Fiber: 0.4g

Total Sugars: 0.7g

Protein: 100.2g

Vitamin D: 0mcg

Calcium: 164mg

Iron: 7mg

Potassium: 26mg

Recipe cooking times, nutritional information and servings are approximate and provided for your convenience. However, 30Seconds is not responsible for the outcome of any recipe, nor may you have the same results because of variations in ingredients, temperatures, altitude, errors, omissions or cooking/baking abilities. This recipe has been analyzed by VeryWellFit. However, any nutritional information is provided as a courtesy and it is up to the individual to ascertain accuracy. To ensure image quality, we may occasionally use stock photography.

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Donna John
This was dinner last night and it's a keeper.
So easy and so yummy!
Elisa Schmitz
Just in time for barbecue season! Thanks for easy, delicious recipe, Donna John !
Jan Mostrom
Wow Donna John This sounds amazing and so easy!!!! Thanks for sharing!

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