Steak Fajitas with Green Sauce | Saveur

Ingredients

• ¹⁄₄ cup fresh lemon juice
• ¹⁄₄ cup pineapple juice
• ¹⁄₄ cup sherry
• ¹⁄₄ cup soy sauce
• 3 tbsp. butter, melted
• 1 tbsp. freshly ground black pepper
• 3 whole dried chiles de árbol, crushed
• 1 clove garlic, finely chopped
• Zest of 2 lemons
• Zest of 1 orange
• 1 skirt steaks (about 3 lbs.), trimmed and halved crosswise
• 6 tomatillos, husked and rinsed
• 2 small serrano chiles, stemmed
• 2 ripe avocados, such as Hass, Gwen, or Frey, peeled, seeded, and chopped
• ¹⁄₂ cup sour cream
• ¹⁄₄ cup chopped cilantro leaves
• Salt
• 6 tbsp. canola oil
• 2 red bell peppers, cored, seeded, and thickly sliced
• 2 yellow onions, thickly sliced
• Warm flour tortillas