Mix together flours, salt, baking powder, sesame seeds, cumin in a bowl.
Add butter and rub it into the flour with finger tips.
Add water and form stiff dough.
Let it rest for 15 minutes.
Preheat the oven to 400F. Grease a baking sheet and dust it with flour.
Dust the rolling surface with flour and roll out the dough into ¼” thick disc and cut it into squares or diamonds. Collect the scrapes and repeat the process again. I divided the dough into two balls and then rolled it.
Transfer the squares to the baking sheet. Prick the squares with a fork and bake for 15 – 20 minutes. Mine were done in 15 minutes and 10 minutes into baking, I flipped the squares for even baking.
Cool on a wire rack and store in an airtight container.