Mix all ingredients in a pressure cooker or pot. Add 2 liters (about 2 quarts) of water, and bring to a simmer.
Pressure cooker method. Cover, and cook on pressure over medium heat for 20 minutes, or until the lentils are tender. If the lentils are still submerged in sauce, reduce the liquids so that the sauce is ample, but not watery. Adjust the seasoning if desired, and serve with hot sauce, if desired.
Pot method. Cover, and simmer the lentils over medium heat about 1 1/2 hours, or until the lentils are tender and the sauce is not watery. (If the liquids reduce too much during cooking, add a little water to prevent the lentils from burning.) Adjust the seasoning if desired, and serve with hot sauce, if desired.
Scoop up the lentils with crusty bread, or eat them with a spoon.