Picture of Mixing the Cement
For my 22×31 cm pizza box, I used: 2 kg of cement, 2 kg of sand, 1.2 liters of water. Pour the cement mixture slowly into the box, making sure it spreads evenly. Let a bit of cement flow inside the mug—this will help it stay firmly in place. Gently tap and shake the box on the table to release air bubbles.