1 (14-ounce) can coconut milk (preferably full-fat)
1 (2 1/2") piece ginger, peeled
4 garlic cloves, peeled
1/4 cup raw cashews, chopped (optional)
1 1/2 teaspoons yellow and/or black mustard seeds (optional)
5 ounces baby spinach
Cilantro leaves with tender stems and cooked rice or naan (Indian flatbread; for serving)
Preparation
Toss chicken with curry powder, salt, and pepper in a medium bowl.
Heat 2 Tbsp. oil in a large skillet (at least 12" in diameter) over medium-high. Add onion and cook, stirring, until softened, about 2 minutes.
Purée coconut milk, ginger, and garlic in a blender until very smooth.
Add chicken and coconut milk mixture to skillet and cook, tossing occasionally, until chicken is cooked through and sauce has thickened, 7-10 minutes.
Meanwhile, if using, heat 2 tsp. oil in a small skillet over medium. Add cashews and mustard seeds and cook, stirring, until fragrant and lightly browned, 2–3 minutes. Immediately transfer mixture including the oil to a small bowl.
Fold spinach into chicken mixture and cook until wilted, about 1 minute. Divide among 4 bowls. Top with cilantro and cashew mixture, if using. Serve with rice or naan alongside.
