Beer Steamed Mussels with Chermoula Sauce

Ingredients

• 3 cups (105 g) cilantro stems and leaves
• 1 cup (35 g) parsley stems and leaves
• 2 garlic cloves, peeled and halved
• 1/4 tsp red pepper flakes
• 1 tsp ground coriander seeds
• 1/2 tsp ground cumin
• 1/4 cup (60 ml) olive oil
• 1 lemon, zest finely grated
• 1/4 cup (60 ml) lemon juice
• 1 lb (450 g) russet potatoes, peeled and cut into sticks ¼ inch (5 mm) thick
• 1/2 tsp ground black pepper
• 1/2 tsp ground coriander seeds
• 1 cup (250 ml) Belgian-style white beer
• 2 lb (900 g) mussels, trimmed and washed
• Vegetable oil, for frying