Using an electric mixer, beat the sugar and eggs until the mixture is light in color.

Mix the flour, baking powder, and salt.

Add the milk, oil, and flour to the egg and sugar mixture, and mix well. Then add the tahini.

Pour the mixture into a baking pan (make sure the batter does not exceed half the depth of the pan).

Bake in a preheated oven at 350°F (180°C) for 53 minutes.