Chicken, Lemongrass, And Potato Curry (Ca-Ri Ga)

Ingredients

• 3 to 4 hefty lemongrass stalks, trimmed and coarsely chopped (about 2/3 cup total)
• 1-inch piece fresh ginger, peeled and chopped
• 1 yellow onion, chopped
• 2 tablespoons canola oil
• 2 tablespoons madras curry powder (or other curry powder)
• 1/2 teaspoon dried red chile flakes
• 1 1/2 teaspoons salt
• 1/2 teaspoon black pepper
• one 13 1/2-ounce can coconut milk
• 2 1/2 pounds bone-in chicken thighs, skin removed
• 1 1/2 pounds red potatoes, peeled and cut into 1-inch chunks
• 1 lime, cut into wedges
• handful cilantro