1. Pull the leaves off the base of your cauliflower so that only the head and the stems remain.
2. Place the cauliflower on a cutting board and take a sharp knife to cut it in half from the top of the head through to the foot of the stem.
3. Place the cut cauliflower side down on the cutting board and cut them in half again.
4. Place a cauliflower quarter on the board and use the knife to cut out the core. Repeat the process with the remaining quarters.
5. Gently pull apart the cauliflower florets one by one.
6. Put the cut-up florets in a colander and wash them under running water.