Pineapple Carne Asada Tacos

1 . Stage

In a large bowl or glass baking dish, combine all marinade ingredients except for steak and whisk until completely smooth. Reserve ⅓ of marinade and set aside in a separate container.

2 . Stage

Place steak on a cutting board and pierce with a fork all over. Transfer steak to the marinade dish, tossing to coat evenly. Transfer to the refrigerator and let marinate 4 to 8 hours.

3 . Stage

In a large cast-iron pan over high heat, heat 1 tablespoon oil and ½ tablespoon butter. Drain away excess marinade from steak, then carefully place two pieces of steak into the hot pan. Let sear until some char forms, about 3 minutes, then flip and brush on more reserved marinade. Cook 2 to 3 minutes more on the second side, then transfer to a cutting board and brush on more marinade. Repeat with remaining steak.

4 . Stage

Let seared steak rest for 10 minutes before dicing into ½” cubes. Brush with remaining marinade and toss to coat. In a small bowl, stir together sour cream, lime juice, and salt until smooth.

5 . Stage

To assemble: Microwave taco shells on high for 30 minutes. Fill each taco shell with ¼ cup steak, sliced avocado, tomatoes, red onions, sour cream mixture, and cilantro. Drizzle with more Asada sauce before serving.