Grease and line the base and sides of a 24cm (base measurement) round spring form cake tin with baking paper

If you are going to sprinkle the sides with seeds, then lightly grease the sides of the paper with melted butter and toss the seeds around so that they stick to the butter

Place the parmesan into TM bowl and mill 10 seconds / speed 9 … put aside

Fill the TM bowl with water up to the 1 litre mark

Place the florets into the Veroma and steam for 15 minutes / Veroma / speed 2

Stir the florets around, then steam again for another 5 minutes / Veroma / speed 2, and repeat this process one more time (so they have steamed for a total of 25 minutes)

By this time the cauliflower should be cooked, but not falling apart as you still want some slight resistence

Put the cauliflower into a large mixing bowl to cool off, and lightly rinse out the TM bowl and dry off with kitchen paper (does not need to be perfect)

Preheat oven to 180 degrees fan forced, and place rack in the middle of the oven

Start on your filling: cut four round slices off the top of the red onion and put aside

Cut the rest of the red onion into chunks and put into the TM bowl

Add the oil and rosemary and chop 3 seconds / speed 7, scrape around bowl then cook for 10 minutes / 100 / speed 1 / MC off

Allow the onion mix to cool a little in the TM bowl for 10 minutes

When the onion mix is cooler, add the basil, flour, baking powder, turmeric, parmesan, eggs, cream, lemon zest, salt and pepper and blend 10 seconds / reverse / speed 6, scrape and repeat 5 seconds / reverse / speed 6

Pour the wet mix over the cauliflower florets in the large mixing bowl, and stir through so that all the cauliflower is well coated

Pour the mix into the tin spreading it evenly on top with the back of a spoon (It will still look a bit lumpy but that is okay, as the filling will rise during baking making the top of the cake more even), and then top with the four rings of sliced red onion

Bake for 60 minutes, turn tin around and continue for another 10 minutes, or until skewer inserted into centre comes out clean and the top is a nice golden brown and set

Remove cake from oven and leave to rest for 20 minutes before serving