Thai-Style Coconut Chicken Soup

Ingredients

• 1 quart chicken stock
• 1 lb. chicken breasts, sliced into thin 2-inch strips
• 3 whole scallions, sliced into rings
• 2 stalks lemongrass, sliced into quarters (or 2 tbsp lemongrass paste)
• 2 tbsp fresh grated ginger
• 2 tbsp soy sauce (or more to taste)
• 1/4 tsp cayenne pepper (or more to taste)
• 6 oz. fresh oyster and/or shitake mushrooms, sliced
• 2 cans (14 oz) light coconut milk
• 1 tbsp sugar
• 1 tsp fresh grated lime zest
• 1/2 cup fresh lime juice
• 2 tbsp fresh chopped cilantro