In a food processor combine the onion, garlic, jalapeno, garam masala, cumin, and cloves. Process to make a chunky paste.
Heat the oil in a large Dutch oven over medium heat. Add the onion mixture, curry powder, and 1/4 cup water. Let fry 4 to 5 minutes.
Add chicken pieces, potatoes, and salt to taste. Add water to cover, up to 3 cups, and bring to a boil. Simmer until the chicken and potatoes are cooked through, about 30 minutes. Serve over rice.
Recipe from Emeril Lagasse