Preheat the oven to 220C/450F degrees.
Line a baking tray with parchment paper.
Cut the broccoli into florets, including the stalks, and place into a food processor. Blitz until the broccoli is small.
Place the broccoli in a bowl and add all the other ingredients. Mix well until combined.
Spoon the mixture onto the parchment paper and spread out evenly with a spoon.
Bake for 20 minutes until golden and firm
Switch off the oven. When the tray is cool enough to handle take the tray out and flip the baked mixture over. Place back in the oven until the oven is cold. This should help crisp the nacho mixture. If it is not as crisp as you would like, put the oven on a low heat and bake for an hour (check to make sure they don't burn though)
Cut into strips, then into squares and triangles to make the nachos.