Coal-Roasted Sweet Potatoes with Avocado-Cilantro Sauce | GBH

Ingredients

• 4 large (12 to 14 oz each) sweet potatoes, scrubbed
• 3 ripe avocados, preferable Haas, pitted and flesh removed
• 2 cups plain Greek yogurt
• 1 Tbsp grated lime zest, more to taste
• 1/3 cup fresh lime juice, more to taste
• 2 serrano chiles, stemmed and seeded
• 2 garlic cloves, crushed
• 1/2 cup cilantro leaves
• 1/4 cup flat-leaf parsley leaves