Preheat oven to 180 C (355 F) and line a baking tray with baking paper.
Cook chopped broccoli in boiling water for a few minutes, until soft. Strain in a sieve so you don't lose any little bits down the sink. Let cool for a few minutes.
In a mixing bowl combine broccoli, cheese and flour.
Whisk egg and milk together, add to mixing bowl and mix until well combined.
Place dough on a lightly floured surface and roll flat with a rolling pin (dust rolling pin with flour to keep it from sticking).
Cut out circles with a small cookie cutter.
Place circles on baking tray, evenly spaced.
Bake for 10-12 mins.