Author Notes: There is a local institution here in my hometown of Denver called Bastien's. Rebuilt in 1958, the restaurant still sports a mid-century neon sign that proudly boasts its famous sugar steaks. While my family and I used to go for the novelty of their deep-fried burger (stuffed with corned beef, no less), they are better known for their crisp, caramelized steaks. I usually use this marinade on pork, but I decided to try it out on a flavorful flap steak—and it was magnificent. It is great served with some simple rice and broccoli or on a sandwich with cucumber, avocado and a bit of mayo the next day.

Vietnamese Sugar Steak

Serves: 4 
Prep time: 4 hrs 30 min 
Cook time: 25 min

Ingredients

• 4tablespoons fish sauce
• 2tablespoons brown sugar
• 3tablespoons lime juice, divided
• 1tablespoon minced garlic
• 1pound skirt or flap steak
• 1tablespoon butter (optional)

Directions

1. In a large bowl, mix the fish sauce, brown sugar, 2 tablespoons of the lime juice, and garlic. Place the steak in the bowl to marinate and cover with plastic wrap. Place in the refrigerator for at least 30 minutes, or up to 4 hours.
2. Remove the steak from the refrigerator and allow it to return to room temperature, about 30 minutes. Reserving the marinade, remove the steak from the bowl.
3. Over a grill or in a cast-iron skillet over high heat, grill the steak for 3 to 4 minutes per side, until medium-rare.
4. Allow the steak rest for 10 minutes, then slice it thinly across the grain. Add the remaining tablespoon of lime juice to the marinade and pour it into a saucepan. Cook over medium heat until slightly reduced, about 4 minutes. Once it's warm, swirl in the butter for extra deliciousness, if desired. Serve steak with sauce at the side.

https://food52.com/recipes/34678-vietnamese-sugar-steak