This lean-cut flank steak marinade is sweet, garlicky, and full of warm spices. Plus, you probably already have all the ingredients you need to make it. If you love my staple brown sugar spiced pork tenderloin, you’re going to love this sweet garlic spiced grilled flank steak.

Fire up the grill, grab a loaf of crusty bread, toss your favorite salad, and dinner is done. So easy and yummy!

You'll love this tangy, sweet garlic spiced flank steak marinade!

I love meals like this that feel restaurant-worthy, but are the EASIEST! Easiest plus yummiest makes me wonder why we do anything else! It’s the winning formula- duh. Just mix up a quick marinade and throw it in a bag with your flank steak. Later, grill it! Got it?

And the best part? By using such a lean cut of meat, it’ll fit SO easy into your daily macros with room for all your favorite sides.

easy, delicious flank steak marinade

What You Need to Make Sweet Garlic Spiced Marinade

This marinade is sweet and garlicky– and obviously “macro-friendly” (which is mostly going to mean it’s not full of olive oil which sneaks in fat and calories you might find are totally unnecessary.) The warm spices play so nicely with grilled, savory flank steak. Here’s what you’ll need to cook your flank steak…

  • Apple cider vinegar
  • Brown sugar
  • Minced garlic (or frozen cubes of garlic)
  • Cumin
  • Chili powder
  • Paprika

Most of these ingredients are, at least for me, pantry staples. YAY! No big grocery run–a total lifesaver. Just grab some flank steaks, and if you buy a few extra, throw a couple in the freezer for next time while you’re at it! You can even add the marinade first for a really easy dinner in the future! Nothing (except maybe my meal plan or cookbooks) makes macro-counting easier than having pre-made or easy-to-make proteins on hand.

One of the best parts about this marinade is that you can leave it on for just 30 minutes if you are low on time, or make it in the morning and let it sit in the fridge for up to 6 hours. Obviously, more time lets it sink in a bit more, but I’m the world’s worst planner, so we’re usually just letting it sit on the counter for 30. Either way, it’ll be amazing!

The marinade for this sweet garlic spiced grilled flank steak comes together so fast!

How to Make Sweet Garlic Spiced Grilled Flank Steak

To make this Sweet Garlic Spiced Grilled Flank Steak all you have to do is marinate and grill your flank steak, and dinner will be ready in no time! To start, combine the marinade ingredients in a small bowl. Just whisk everything together, making sure the brown sugar smooths out and isn’t lumpy.

Next, using a sharp knife, trim any obvious fat off your flank steak. There’s nothing better than a good, sharp knife. No kitchen gadget does it better, IMO. It makes cooking and preparing dinner SO much easier. These Nakano are my absolute favorite!

After trimming your lean cut of steak, place it in a shallow dish or a large resealable bag to pour the marinade over the steak.

Then, you can either let it sit out at room temperature for 30 minutes, or you can put the marinating steak in the fridge for up to 6 hours. If you decide to put the steak in the fridge, pull it out at least 30 minutes before you cook it. You’ll want to bring it up to room temperature before grilling.

Grilling Your Flank Steak

When you’re ready to cook your steak, either heat a cast iron skillet over high heat or fire up your grill. Be sure to spray your skillet or grill with a little bit of avocado oil to prevent sticking.

Easy, marinated sweet garlic spiced grilled lean-cut flank steak

While things are heating up, remove your steak from the marinade, letting any excess marinade drip off. Sprinkle each side of your flank steak with good amounts of kosher salt and cracked pepper. Then, sear for 3-4 minutes on each side. The amount of time you need to cook depends, of course, on the steak’s thickness. So just keep an eye on it, and use a meat thermometer to check for doneness. Make sure to pull it off the heat when the internal temperature reaches 130° because it will keep cooking off of the grill or skillet.

What is Slicing Against the Grain?

After pulling the cut of meat off the grill, place the flank steak on a plate or cutting board and tent it with aluminum foil. Let it rest for 10 minutes before slicing against the grain.

I know this seems like a small thing, but slicing against the grain makes all the difference! You’ll avoid those tough hunks of meat that pull out of your sandwich (which is where our leftovers go) on the first bite.

To slice against the grain, take a minute to see which way the lines are running through the meat. Then cut perpendicular to those lines, and you’ll create bites of meat that are tender instead of tough.

Serving Suggestions for Sweet Garlic Spiced Grilled Flank Steak

Here are some macro-friendly sides that go beautifully with this flank steak to make a full dinner:

If you want a recipe to use your leftover steak in, you cannot go wrong with these delicious Steak Pitas with Romesco sauce.

Sweet Garlic Spiced Grilled Flank Steak leftovers

When I make this lean cut of steak, I LOVE to make extra so that I can enjoy it all week long. In fact, that’s my fav way to meal prep for the entire week. A few sauces in the fridge and a protein I can reuse in 2-3 meals. If I had to start from scratch making dinner every night–I just wouldn’t do it.

You can get the recipe for these DELICIOUS steak pitas here, and if you want to learn more about how I meal prep for my family, you can find all the details in this blog post here.

Is Sweet Garlic Spiced Grilled Flank Steak GF/DF?

Yes! This Sweet Garlic Spiced Grilled Flank Steak is naturally gluten-free and dairy-free! If you are eating gluten-free and dairy-free, I know it can be SO hard to find good recipes. If you need more gluten-free and dairy-free recipes, I have a LOT available here on my blog and in my cookbooks.

I don’t eat gluten-free and dairy-free all the time, but when I was making my cookbook PLANNED, I was eliminating gluten and dairy from my diet trying to figure out some things for me health wise. Because of that, I made almost all the recipes gluten-free and dairy-free, or with really easy swaps that are listed in the footnotes of the recipe.

If you need more gluten-free and dairy-free recipes, you can shop my cookbook PLANNED here.

Similar Grilled Protein Recipes

If you’re ready to do some more grilling this summer, here are a few other grilled protein recipes you might like:

Be sure to tag me on Instagram @lillieeatsandtells if you make this sweet garlic spiced grilled flank steak and tell me how much you love it!

Disclosure: I only recommend products I would use myself and all opinions expressed here are my own. This post may contain affiliate links that at no additional cost to you, I may earn a small commission. Read the full privacy policy here.

Sweet Garlic Spiced Grilled Flank Steak

You probably have all the ingredients you need to make this sweet garlic spiced grilled flank steak. This recipe comes together fast!
5 from 1 vote
Course dinner
Prep Time 35 minutes
Cook Time 10 minutes
Servings 6 servings
Calories 290 kcal


  • lb flank steak
  • 3 tbsp apple cider vinegar (45 g)
  • 2 tbsp brown sugar (30 g)
  • 6 cloves garlic, minced or use frozen cubes
  • tsp cumin
  • tsp chili powder
  • tsp paprika
  • salt and pepper to taste


  • Combine vinegar, brown sugar, garlic, and spices to make the marinade.
  • Trim any obvious fat off the flank steak and place it in a shallow dish or a large resealable bag.
  • Pour marinade over steak and let marinade for 30 minutes at room temp, or store in the fridge for up to 6 hours. Pull it out 30 minutes prior to cooking to bring back to room temp.
  • Heat a grill or cast iron skillet to high heat. Spray or drizzle a little avocado oil in the skillet or grill and let it get nice and hot.
  • Remove your steak from the marinade and give each side a good sprinkle of kosher salt and some cracks of pepper.
  • Sear for 3-4 minutes per side, depending on thickness. Remove when internal heat hits around 130, since it will continue to cook after you pull it off.
  • Tent with foil and let steak rest for five to ten minutes before slicing thinly against the grain.


Serving: 112gCalories: 290kcalCarbohydrates: 6.7gProtein: 37.3gFat: 10.7g
Keywords flank steak, garlic, grilled

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About the Author

Hello. My name is Lillie. I’m not a registered dietitian, or a macro coach, or a public figure or culinary genius. I’m a mommy of four who FOUND macro-counting and fell in love with this balanced approach to food...

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