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    Home > Main Courses > Main Dishes Beef > Overnight Flank Steak Marinade

    Overnight Flank Steak Marinade

    Published: Jul 15, 2019 · Modified: Nov 14, 2022 by Lea Ann Brown · This post may contain affiliate links

    Jump to Recipe Print Recipe
    San juan grilled flank steak recipe

    This overnight flank steak marinade is a tangy spicy savory mix for flavor that comes alive on your grill. San Juan Flank Steak, a Grilled Flank Steak Recipe is just what Summer ordered.

    Grilled flank steak topped with sliced green onions

    The aroma from this flank steak when it hit that grill was intoxicating.

    This overnight flank steak marinade recipe includes some of your favorite ingredients to bring you a big bam of flavor for your favorite grilled steak.

    Over the years flank steak has been pretty much our go-to when Summer grilling season is in full swing. When prepared properly flank steak is cut of meat that laps up about any marinade concoction you throw its way.

    Not to mention it only takes about 5 – 6 minutes per side to cook on the grill. Does grilling life get any better than that? Plus it’s a lean cut of meat, so my waist line says, “thank you very much.”

    And preparing an overnight flank steak marinade, not only imparts incredible flavor into the beef, but saves time when you’re ready to start cooking dinner.

    A recipe from one of our Colorado Junior League Cookbooks, the title of the recipe is San Juan Steak.

    Let’s Take a look.

    How To Marinate Flank Steak

    Marinating flank steak is as easy as falling off a log. But there are a couple of techniques to keep in mind.

    Flank steak is flavorful, lean and a somewhat tough cut of meat that benefits from an overnight soak that includes an acid such as vinegar, lime or lemon juice. This helps break down the connective tissue to produce a tender cut of meat, once cooked.

    Along with your choice of acidic liquid Just throw in some of your favorite seasonings.

    I’ve seen recipes that instruct one to score the meat with a sharp knife to encourage the flavor to penetrate the steak. Which seems to make sense,

    However, I’m sticking by the golden rule of never piercing your meat. You want the end result to be as juicy and flavorful as possible. Any kind of piercing, jabbing as you cook, or cutting will release valuable juices.

    Please use tongs when turning your meat.

    All you need for this overnight flank steak marinade are simple ingredients and a zip lock gallon bag.

    Does Flank Steak Have to Be Marinated?

    To marinate or not to marinate? That is the question. Although marinating is fine for a flank steak, it most certainly isn’t a requirement.

    I have grilled many flank steaks that have produced very tender results without a marinade. The secret is to make sure you don’t overcook the steak, and then slice it thinly in the opposite direction to how the grain of the meat is running.

    And in leu of the marinade, just rub the flank steak with your favorite seasonings before grilling.

    Inspiration for the name San Juan Grilled Flank Steak Recipe

    The San Juan Mountains are a high and rugged mountain range in the Rocky Mountains in southwestern Colorado and northwestern New Mexico. In my opinion some of the most outstanding scenery in our state. The area around Ouray, Telluride, Durango Creed and Lake City has provided us with several stunning vacation memories. Photo below.

    Sliced grilled flank steak served with a kale salad

    Overnight Flank Steak Marinade Recipe (San Juan Flank Steak)

    The marinade in this recipe provides plenty of flavor for the flank steak. However, who can resist a sauce to liven things up a bit. I’d suggest serving this with a gorgeous Horseradish Cream Sauce, or send it south of the border with this Roasted Hatch Chile Sauce.

    Side Dish Recommendation Zucchini and Potato Skillet with Thyme. This is a great side for any grilled steak recipe.

    I hope you give this Overnight Flank Steak recipe a try, and if you do, please come back and give the recipe a star rating, and leave a comment about your experience with the recipe. Your input is valuable to me.

    And if have a favorite grilled flank steak marinade for grilling or grilled flank steak recipe let me know, I’d love to give it a try.

    More Grilled Flank Steak Recipes

    • Tangy Grilled Flank Steak with Horseradish Cream
    • Grilled Flank Steak with Charred Caramelized Sweet Corn
    • Grilled Flank Steak with Chimichurri Sauce
    • Grilled Flank Steak (or skirt steak) Fajitas

    Don’t miss my Beef Category for more steak and beef recipes. That’s where you’ll find the most popular post, Best Burger Recipes for Father’s Day Lineup.

    Grilled flank steak topped with sliced green onions

    San Juan Overnight Flank Steak Marinade

    This Grilled Flank Steak Recipe is just what Summer ordered. Flank steak is marinated overnight in tangy spicy savory mix for flavor that comes alive on your grill.
    5 from 1 vote
    Print Pin Rate
    Course: Main Course Beef
    Cuisine: Amerian
    Prep Time: 15 minutes
    Cook Time: 10 minutes
    Marinate: 1 day
    Servings: 4
    Calories: 481kcal
    Author: Lea Ann Brown

    Ingredients

    • 1 1/2 pounds flank steak
    • 1/2 Cup olive oil
    • 1/4 Cup white vinegar
    • 1 teaspoon salt
    • 1/4 teaspoon Tabasco Sauce
    • 2 teaspoons Mexican oregano
    • 2 teaspoons New Mexico red chile powder or Ancho Chile Powder
    • 1 teaspoon garlic minced
    Prevent your screen from going dark

    Instructions

    • In a small bowl mix together the marinade ingredients.
    • Place the steak into a gallon sized zip lock bag. Add the marinade ingredients and seal, pushing out as much air as you can.
    • With your hands, squish the bag around several times to make sure the beef is fully coated with the marinade.
    • Place in refrigerator and marinate over night.
    • Preheat grill to 600 hundred degrees. Lower heat to medium, or 350 degrees.
    • Remove flank steak from marinade. Grill 5 – 6 minutes per side. Let rest 5 minutes tented wtih foil. Then slice the meat across the grain. Top with sliced green onions for presentation. Serve immediately.

    Notes

    The marinade for this recipe provides plenty of flavor for the flank steak. However, who can resist a sauce to liven things up a bit. I’d suggest serving this with a gorgeous Horseradish Cream Sauce, or send it south of the border with this Roasted Hatch Chile Sauce.

    Nutrition

    Calories: 481kcal | Carbohydrates: 1g | Protein: 37g | Fat: 36g | Saturated Fat: 7g | Cholesterol: 102mg | Sodium: 696mg | Potassium: 612mg | Fiber: 1g | Sugar: 1g | Vitamin A: 315IU | Vitamin C: 0.2mg | Calcium: 55mg | Iron: 3.3mg
    Tried this Recipe? Pin it for Later!Mention @lannisam or tag #CookingOnTheRanch!

    Overnight Flank Steak Marinade – “San Juan” Flank Steak … It’s Whats for Dinner

    Photo of Uncompahgre Peak in the San Juan Mountains Southwest Colorado from Slumgullian Pass
    Uncompahgre Peak, San Juan Mountains Southwest Colorado Taken from Slumgullian Pass

    More Beef Recipes

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    • Braised Mexican Short Ribs

    Reader Interactions

    Comments

    1. Chef Mimi says

      March 07, 2021 at 8:09 am

      This is fabulous! I love your marinade. Unfortunately, ever since I got a sous vide, I can’t go back! Even though I always loved grilled flank steak. But I can use your marinade!

      Reply
      • Lea Ann Brown says

        March 18, 2021 at 2:13 pm

        Hi Mimi. I am so tempted to get a sous vide.

        Reply
    2. John / Kitchen Riffs says

      July 17, 2019 at 8:19 am

      Flank steak is good stuff. Lotta flavor in a fairly inexpensive cut. Winner! Yours looks perfect — neat marinade. Thanks!

      Reply
      • Lea Ann Brown says

        July 17, 2019 at 8:25 am

        Thnks John, always good to hear from you.

        Reply
    3. Larry says

      July 16, 2019 at 9:17 am

      Looks really good Chef.

      Reply
      • Lea Ann Brown says

        July 16, 2019 at 4:51 pm

        Thanks Larry! 🙂

        Reply

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    I'm Lea Ann, A Culinary School Grad bringing you Wild West Colorado inspired recipes. You'll find lots of Southwestern, and Mexican food recipes, and some favorites from Culinary School along with pro cooking tips. If you're an adventurous home cook looking to spice up your meal plans, you'll find plenty of inspiration and reliable, approachable, easy to follow recipes.

    More about me →

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