First, slice 5-inch thick unsliced sandwich bread in half. Then cut out a square: make 2 incisions vertically on top and another 2 incisions horizontally. Make sure to leave about 1 inch from the edges and bottom of the bread. For the first brick, make an incision on one side, 1 inch from the bottom, leaving 1 inch from the corners as well. It should look like a container like this. For the other brick, just cut out a square leaving 1 inch from the edges. Now set aside the 2 bricks. And cut the rest into small cubes.