Prep: Thoroughly wash the broccoli head under cold running water to remove dirt or pesticides. Then, with a sharp knife, slice off the bottom of the stem.
Hold the broccoli with the stem facing up. Start by cutting off the florets from the edges, working your way toward the center. Angle your knife slightly towards the stem and slice through the branches holding the florets to the main stem.
For larger florets, cut them into smaller, bite-sized pieces. Cut vertically up to where the stem first meets the tops, then gently break the floret apart using your hands.
You can peel off the tough outer layer of the stem using a knife or vegetable peeler. Dice or julienne the stem for use in stir-fries, soups, or salads.