Heat up the olive oil in a large pot on medium-high heat.
Add the onions, potatoes and leek, sprinkle ½ teaspoon salt and ¼ teaspoon black pepper and close with a lid.
Turn the vegetables over after 5 minutes, making sure they brown all around.
Place the short ribs in a bowl, add a little olive oil, ½ teaspoon salt and ¼ teaspoon black pepper and mix well.
Add the short ribs to the pot and sear on all sides.
Lower the heat, cover and cook for about 30 minutes.
Pour in the date syrup and water mixture, cover and cook for 2 hours.