Place shallots, garlic, ginger, nuts, turmeric, cayenne, soy sauce, oil, water, salt and pepper in a blender. Process to a smooth paste. Saute paste for 6 minutes. Add chicken, salt and stock. Simmer for 10 minutes. Serve with a scoop of rice on the bottom of a soup bowl, ladle over some soup, stir in the hot sauce and sprinkle with scallions.