Thai-Style Grilled Beef Skewers

Ingredients:

2 lbs beef top sirloin steak, sliced thin across grain, about 1/8-inch thick
Satay Marinade:
1 tbsp grated ginger
4 cloves garlic, crushed
2 tbsp minced onion
1/4 cup packed brown sugar
1/4 cup fish sauce
2 tbsp soy sauce
2 tbsp vegetable oil
2 tbsp ground coriander
1 tbsp cumin
1/2 tsp turmeric
1/8 tsp cayenne pepper
1 rounded tbsp minced lemongrass