Saute the onions with oil in a large pot over medium heat for 15 minutes,
Add turmeric and saute for an additional 2 minutes. The onions should be golden in color and aromatic at this stage.
Add the beef pieces to the onions and increase the flame to medium-high and saute for about 5 minutes.
Continue by adding the tomato paste and saute for a couple of minutes on medium heat to bring out the flavor of the tomato paste.
Add 1 1/2 cups of hot water, cover and cook for 45 minutes over low heat.
Continue by adding the Limu Omani, salt, pepper, Advieh, and sugar to the stew. Stir and simmer for 20 minutes.
Gently stir in the partially cooked yellow split peas, and continue to simmer on low heat for 15 minutes.