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Home » Popular » Flank Steak with Blueberry Balsamic Sauce

Flank Steak with Blueberry Balsamic Sauce

June 4, 2019 by Kathryn 13 Comments

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This flank steak recipe with blueberry balsamic sauce is melt in your mouth delicious! The 4-ingredient marinade leaves the flank steak tender and juicy while the blueberry balsamic sauce adds some tang and interest. It'll have you re-considering why you don't include fruit on your meat more often.

***This post has been updated in July 2020 with updated copy and new photos...same great recipe!***

Blueberry Sauce For Your Meat is LEGIT

Y'all! I first tried steak with a blueberry balsamic reduction at Acqua Al 2 in DC many years ago. This authentically Italian restaurant is known for their filet mignon cooked in a blueberry reduction. I really liked the blueberry sauce because it was so unique (fruit on meat?! GASP!), so I knew I wanted to recreate this but with a more economical meat option that could be prepared on a weeknight.

Enter this easy, marinated flank steak with blueberry balsamic reduction. The only part you need to remember is to make the marinade in advance. The more time to marinate the better, but sometimes (hand up!) that's not always possible, so 30 minutes works in a pinch, too.

side view of flank steak with blueberry sauce on white plate with salad in background

Preparing Your Flank Steak

Flank steak is a cut of beef that's typically very lean, so it can sometimes be on the tough side. This is why you usually see flank steak recipes that call for a marinade. It's an absolutely delicious piece of meat though. We eat flank steak about once a week -- it's our go-to weeknight steak option. The kids love it, we can double the recipe to last two nights, and it's just plain delicious.

aerial view of white platter with flank steak, plates in corner and serving fork next to platter.

You'll want to score your steak (just make cuts into the meat with your knife) so the marinade can seep into the flank steak as much as possible. This particular marinade uses just 4 ingredients (aside from S + P). The acidity of the balsamic vinegar tenderizes the steak and the olive oil keeps it juicy. Match made in heaven.

When your steak is cooked, make sure you cut the flank steak on the diagonal so you get wide pieces. This'll break up the muscle fibers to make double-sure you don't get a tough piece of meat in your mouth.

up close picture of sliced flank steak with blueberry sauce

This Blueberry Sauce for All Meats

Don't limit yourself to flank steak either. Try using the blueberry sauce on chicken, pork chops, or if you want to get fancy -- give it a try with a nice filet.

Whatcha cookin' for July 4th?

Here's some more ideas:

  • Start the morning off with some patriotic baked donuts
  • Look at these these adorable red, white, and blue lemon cake pops.
  • No Bake Strawberry Cheesecake (because it's too darn hot to turn on the oven much)

xox,

kathryn

As always, if you make anything from the blog, be sure to let me know! I love hearing from you in the comments on this post below or find Worn Slap Out on Facebook, Instagram, or Pinterest!

Flank Steak with Blueberry Balsamic Sauce

This flank steak becomes juicy and tender when marinated, then it comes with the most delicious blueberry sauce to devour!
4.6 from 5 votes
Print Pin Rate
Course: Main Course
Cuisine: American
Keyword: blueberry balsamic reduction, blueberry balsamic sauce, flank steak
Prep Time: 15 minutes
Cook Time: 16 minutes
Marinating Time: 30 minutes
Total Time: 1 hour
Servings: 6 people
Author: Kathryn

Ingredients

  • 1.5 pounds flank steak

For the marinade:

  • 1 cup extra virgin olive oil
  • ½ cup high quality balsamic vinegar
  • 3 garlic cloves, minced
  • 2 Tbsp rosemary, chopped
  • ¼ tsp salt
  • ¼ tsp pepper

For the blueberry balsamic sauce:

  • 2 Tbsp high quality balsamic vinegar
  • 1 cup fresh blueberries
  • 1 tsp brown sugar*
  • 1 Tbsp freshly squeezed lemon juice

Instructions

  • Lay out flank steak on cutting board or parchment paper. Score the steak with a knife to allow marinade to seep into the steak. Set aside.
  • Put marinade ingredients in a small bowl. Stir until well combined. Transfer meat and marinade to a double-lined freezer bag. Be sure all parts of the meat get covered in the marinade by squishing it all around. Let it rest for at least 30 minutes or overnight if possible.
  • Turn on your oven's broiler.
  • On a roasting rack, cook the meat under the broiler for 6 minutes per side for medium-rare cooked steak. Take steak out of the oven once both sides have cooked and let rest for 10 minutes.
  • While steak is resting, combine all ingredients in a small sauce pan. Over medium heat, boil blueberry mixture until blueberries break down and mixture is reduced (about 6-8 minutes).
  • Pour blueberry balsamic mixture over cut steak and enjoy!

Notes

*If you're trying to keep it refined sugar free, feel free to substitute maple syrup (1 Tbsp) instead of brown sugar! 
aerial shot of white plate with flank steak with blueberry sauce and side salad.
« Chocolate Pots de Crème
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Reader Interactions

Comments

  1. Lori Goldman

    June 05, 2019 at 10:34 am

    This looks fantastic girl! What an amazing main dish for the 4th!

    Reply
    • Kathryn

      June 05, 2019 at 1:53 pm

      Thanks, Lori! It's a good one!

      Reply
  2. rosesandwhiskers1

    June 06, 2019 at 6:58 pm

    This looks absolutely delicious!! I'll add it to my husband's to-try list. Because he's the cook, and I bake! :p

    Reply
    • Kathryn

      June 07, 2019 at 9:10 pm

      Yes, girl! Get him to make it for you this weekend! 😉

      Reply
  3. Lauren

    June 11, 2019 at 6:59 pm

    This looks so yummy! cannot wait to try!

    Reply
  4. Kendell

    August 06, 2020 at 3:34 pm

    5 stars
    I always wonder about putting fruit on meat, but you made this sound great!

    Reply
  5. Jamie Burwell Mixon

    August 29, 2020 at 5:12 pm

    Have eaten the Filletto al Mirtillo at Acqua al Due in Firenze several times. Might be my favorite meal ever. In my whole life. Thanks, gonna try to recreate it with your inspiration!

    Reply
    • Kathryn

      August 31, 2020 at 11:23 pm

      What a dream! I bet that was an amazing meal!

      Reply
  6. Christine

    June 18, 2021 at 4:10 pm

    5 stars
    I just picked a ton of haskap berries so I used them in the sauce. This is really delicious! The Rosemary with the berries is killer! I went one step further and placed a thick slice of Cambozola cheese on the steak when it was done cooking. The oozy goodness of the cheese with everything else is something very special!

    Reply
    • Kathryn

      June 24, 2021 at 2:38 pm

      That sounds heavenly, Christine!

      Reply

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Hey, y'all!

I'm Kathryn! Welcome to Worn Slap Out, a Southern-inspired recipe corner for busy people on the go. As a mom of two littles who also loves food, I need meals on the table ASAP but I also want to eat well. Here, you'll find quick, easy, and reasonably healthy meals you can make in a flash. Other loves include Georgia football, cake of all kinds, and elastic waistbands.

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