Heat 4 tablespoons of vegetable oil in a large, heavy saucepan over medium heat.

Add chopped yellow onions and cook, stirring, until they just turn golden (do not let them brown), about 5 minutes.

Add 4 cups of cold water and kosher salt and bring to a boil.

Add long-grain rice, stir, and cook, uncovered, until the water is level with the rice, about 10 minutes.

Cover the pot, adjust the heat to low, and cook until the rice is tender, about 10 minutes longer.

Meanwhile, heat the remaining 2 tablespoons of oil in a small skillet set over medium-high heat.

When the oil just begins to bubble, add the pine nuts and cook until the nuts are golden brown.

Immediately drain them, discard the oil, and set them aside.

When the rice is done, scatter the pine nuts over the top.

Serve the rice with lahmeh fil mehleh.