Prepare a corn mush by boiling the water and adding the cornmeal still mixing. Continue cooking for 15 to 20 minutes. The water-flour proportion are indicative, based on the type of flour you have available, the important thing is to obtain a rather dense mass. Add the sesame seeds, mix and spread on a sheet of baking paper; cover with another sheet of paper, spread with a rolling pin to obtaina thin layer, uncover, cut into irregular lozenges and bake at 350 °F for about 20 minutes, until the chips became crispy. Serve cold.