Step 1

Combine the sugar, lemongrass, ginger, soy sauce, fish sauce, oil, chile garlic sauce, garlic and kosher salt in a medium size bowl. Stir until sugar dissolves.

Step 2

Slice beef into ¼-inch slices (crosswise) and add to marinade mixture in the bowl. Toss to coat beef well with marinade. Cover and refrigerate for at least 30 minutes and up to 12 hours.

Step 3

When ready to cook, heat grill to high. (You should be able to hold your hand 1 to 2 inches above the grate for only 2 to 3 seconds). Oil grates with cooking spray or oil.

Step 4

Drain beef and discard the marinade. Thread 4-5 beef strips onto each skewer, accordion style.

Step 5

Place the skewers on the grill. Cook, turning every couple minutes until golden brown and charred in places, about 10-12 minutes total. Do not cover grill while cooking skewers.

Step 6

Remove from grill and tent with foil for 4-5 minutes. Sprinkle with chopped peanuts and cilantro for garnish. Serve with Peanut Sauce, if desired.