Toast almonds in skillet over medium heat, stirring constantly until nuts are lightly browned. Remove from heat and set aside.
Melt butter in a large skillet over medium heat. Add onions; sauté until limp and slightly browned at the edge. Add garlic, ginger and Serrano chili; sauté an additional minute. Stir in salt and spices; sauté briefly to blend.
Add chicken; stir and cook until pieces no longer appear pink. Add coconut milk and crushed red pepper. Stir until mixture comes to boil then reduce heat and simmer 20-25 minutes.
Remove from heat and stir in lemon juice. Sprinkle toasted almonds over the top.
Serve over rice and garnish with lemon slices if desired.
Enter your zip code to find Challenge products near you.