Really easy!
1 1/2 cups lentils (regular, not red)
7 cups water
1 medium yellow onion, chopped
3 To 5 cloves garlic, minced
1 tabelspoon olive oil
1 teaspoon salt
Freshly ground black pepper to taste
Juice of one lemon
Bring the lentils and water to a boil in a large, heavy soup
pot, then reduce heat and simmer. When the lentils
have cooked for about 40 minutes, saute the onion and
garlic in the olive oil until the onion is soft, then
add the mixture to the lentils, along with the salt
and plenty of black pepper. Simmer for another 30
minutes or so. Just before serving, add about half
the lemon juice, then taste to see whether you want to
add the rest. Add more salt and/or pepper if you like.