Preheat the oven to 350°F/180°C and prepare an 8" x 8" baking dish with baking spray.
Measure all the dry ingredients (semolina, flour, baking soda, baking powder, salt and lemon zest) into a small bowl.
Beat the eggs, sugar and vanilla. Beat in the vegetable oil and the yogurt.
Add the dry ingredients and mix well.
Pour into your prepared baking dish and bake for 20 - 25 minutes.
The cake will be golden brown on top and the center may be slightly collapsed. It is done when a knife inserted into the center comes out clean.
Remove from the oven and let the cake stand until cool.
Poke small holes into the top of the cake (I used a spaghetti noodle) and pour the syrup over the top a little at a time. You may not be able to use all the syrup.