Mix the yeast, sugar, and warm milk together and set aside for 5-10 minutes to activate.
In a large bowl, mix the fine semolina, flour, toasted sesame seeds, toasted nigella seeds, anise seeds, ground anise, ground fennel, and strained hilbeh.
Once yeast is activated, add it to the dry ingredients with the olive oil and reserved hilbeh water. Mix well and press down firmly into a half cookie sheet, making sure its even on all sides.
Cut your cake into the desired shape. I did vertical lines and then diagonal lines to make diamond shaped pieces. Cover and let it rise in a warm place for 1-2 hours or until fluffy.
Bake in a preheated oven at 400F for 35-45 minutes or until it gets some nice color on top.
Pour about 4 cups of simple syrup on top while the cake is hot, and let it sit at room temp until completely cool.
Serve it with black coffee or a hot cup of tea and enjoy.