Grilled Flank Steak with Chimichurri

Ingredients

• 2 lbs flank steak
• 1/4 cup olive oil
• 1/4 cup fresh lime juice
• 1/4 cup fresh orange juice
• 4 cloves garlic, minced
• 1 tsp smoked paprika
• 1 tsp ground cumin
• 1 tsp salt
• 1/2 tsp black pepper
• 1/2 tsp red pepper flakes (optional, for heat)
• 2 tbsp chopped fresh cilantro
• 1 tbsp Worcestershire sauce
• 1/2 cup fresh parsley, finely chopped
• 1/4 cup fresh cilantro, finely chopped
• 3 cloves garlic, minced
• 1/4 cup red wine vinegar
• 1/2 cup olive oil
• 1/2 tsp red pepper flakes
• Salt and black pepper to taste