Step 11: Cook the Cube - Step TEN
Place your Companion Cube into the oven for thirty minutes at 275 Degrees.
This will ensure that your Companion cube will not get squished into an unidentifiable mound of clay after all of your hard work.
Remember that when your Cube is done cooking - IT WILL BE HOT.
Just be careful because the clay stays warm for a while after it has been cooked.