Grilled Flank Steak with Cilantro Lime Butter

grilled flank steak sits in a black grill pan

Grilled Flank Steak with Cilantro Lime Butter

Course: Main Course

Cuisine: American

Prep Time: 15

Cook Time: 20

Total Time: 35

Servings: people

Calories: 374kcal

Author: Becky Hardin

Look no further than this grilled flank steak recipe with cilantro lime butter for an easy and delicious meal. Everyone will love it!

Step-by-step photos can be seen below the recipe card.

Print Recipe

Equipment

Grill or Indoor Grill Pan (Click for my favorite)

Ingredients

For the Cilantro Lime Butter

½ cup salted butter room temperature (1 stick)
1 tablespoon chopped fresh cilantro
1 tablespoon fresh lime juice (from ½ lime)
2 teaspoons lime zest (from 1 lime)
1 teaspoon finely chopped green onion
1 tablespoon garlic paste we used Gourmet Garden brand

For the Grilled Flank Steak

1 teaspoon kosher salt
½ teaspoon ground black pepper
1 teaspoon mustard powder
1 tablespoon garlic paste
1 tablespoon olive oil
2 pounds flank steak

Instructions

To Make Cilantro Lime Butter

Take the softened butter and place it in a medium bowl.
½ cup salted butter
Stir in the cilantro, lime juice, lime zest, green onion, and garlic paste. Mash with a fork or spoon to fully combine.
1 tablespoon chopped fresh cilantro, 1 tablespoon fresh lime juice, 2 teaspoons lime zest, 1 teaspoon finely chopped green onion, 1 tablespoon garlic paste
Place the butter over plastic wrap and form into a log. Wrap and place in the refrigerator for at least 1 hour, or until firm.

For the Grilled Flank Steak

Brush a grill or grill pan with canola oil and heat to high heat. (You want the grill HOT).
In a small bowl, combine salt and pepper, garlic paste, olive oil and mustard powder. Stir to combine and form a paste. Rub both sides of steak with the paste.
1 teaspoon kosher salt, ½ teaspoon ground black pepper, 1 tablespoon garlic paste, 1 tablespoon olive oil, 1 teaspoon mustard powder
Place flank steak on grill and cook for approximately 3-4 minutes per side for rare, or 6-8 minutes per side for well done. We do something in between. Please see my Meat Temperature Chart for help deciding.
2 pounds flank steak
Remove from heat.
Cut into slices, against the grain.
Before separating, slice butter and allow to melt over the steak.

Video

Notes

Start with a steak marinade to make it even more tender.
Be sure to cut flank steak against the grain, and slice it thinly. This is the most enjoyable way to eat it!
The steak butter can easily be made ahead of time, stored in the fridge, and used for other things if you have leftovers.
Steak Internal Temperature Guide:
- For rare steak: 125-130°F
- For medium-rare steak: 130-140°F
- For medium steak: 140-150°F
- For medium-well steak: 150-160°F
- For well-done steak: 160-165°F

Storage: Store grilled flank steak with cilantro butter in an airtight container in the refrigerator for up to 3 days or in the freezer for up to 3 months.

Nutrition