Flat-Iron Steaks with Avocado Butter

Top grilled steak with an herb-studded avocado butter for a delicious barbecue dinner that tastes like it came from a fancy steakhouse.

Prep Time:
20 mins
Grill Time:
7 mins
Stand Time:
5 mins
Total Time:
20 mins


  • 6 beef shoulder top blade (flat-iron) steaks or boneless rib eye steaks, cut 1 inch thick

  • 1 tablespoon olive oil

  • 1 tablespoon herbes de Provence, crushed

  • ½ teaspoon salt

  • ½ teaspoon freshly ground black pepper

  • 1 recipe Avocado Butter

Avocado Butter

  • 1 ripe avocado

  • ¼ cup softened butter

  • 3 tablespoon lime juice

  • 2 tablespoon snipped fresh chervil or parsley

  • 1 tablespoon snipped fresh tarragon

  • ¼ teaspoon salt

  • teaspoon cayenne pepper (optional)


  1. Trim fat from steaks. Brush steaks with the olive oil. For rub, in a small bowl combine herbes de Provence, salt, and pepper. Sprinkle evenly over both sides of each steak; rub in with your fingers. If desired, cover and chill steaks for up to 24 hours.

  2. For a charcoal grill, grill steaks on the rack of an uncovered grill directly over medium coals to desired doneness, turning once halfway through grilling. Allow 10 to 12 minutes for medium rare (145°F) and 12 to 15 minutes for medium (160°F). (For a gas grill, preheat grill. Reduce heat to medium. Place steaks on the grill rack over heat. Cover and grill as above.) Let steaks stand for 5 minutes. Serve steaks with Avocado Butter.

Avocado Butter

  1. Halve, seed, peel, and chop avocado. In a medium bowl combine the chopped avocado, butter, lime juice, chervil, tarragon, salt, and, if desired, cayenne pepper. Using a fork, gently mash the ingredients together until thoroughly combined (if desired, leave mixture somewhat chunky). Chill until almost firm.

    Flat-Iron Steaks with Avocado Butter
    Blaine Moats

Nutrition Facts (per serving)

369 Calories
25g Fat
3g Carbs
33g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 369
% Daily Value *
Total Fat 25g 32%
Saturated Fat 10g 50%
Cholesterol 109mg 36%
Sodium 463mg 20%
Total Carbohydrate 3g 1%
Protein 33g
Vitamin C 6.5mg 32%
Calcium 40.4mg 3%
Iron 3.8mg 21%
Potassium 666mg 14%
Folate, total 32.3mcg
Vitamin B-12 5.4mcg
Vitamin B-6 0.5mg

*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Related Articles