Grilled Flank Steak with Chimichurri

INGREDIENTS

1 1/2 lb

flank steak

1 tsp

garlic powder

3/4 tsp

ground cumin

1/2 tsp

dried oregano

fresh ground pepper

1 1/4 tsp

kosher salt

packed tbsp parsley, finely chopped (no stems)

packed tbsp chopped cilantro

2 tbsp

red onion, finely chopped

1 clove

garlic, minced

2 tbsp

extra virgin olive oil

2 tbsp

apple cider vinegar

1 tbsp

water

1/4 tsp

kosher salt

1/8 tsp

fresh black pepper

1/8 tsp

crushed red pepper flakes, or more to taste