Parboil the cauliflower florets in a large saucepan of salted boiling water for around 4 minutes. Drain it off in a collender and set aside.
Make a roux by adding the butter to a medium saucepan over a medium heat and once melted add the flour and stir until a thick paste is formed. Add in half the milk whilst whisking well until no lumps remain. Add in the remaining milk bit by bit and continue to whisk until smooth. Leave on the hob on a medium low heat until the consistency is just about thick enough to coat the back of a spoon.
Add the crushed garlic to the white sauce and season with salt and a small pinch of white pepper. Remove from the heat and set aside. Heat up a small frying pan over a medium heat and spray in some oil. Add the red onion and fry gently for a couple of minutes. Add in the balsamic vinegar then turn down the heat lower. Gently fry the onion until soft and caramalised, drizzle over the honey then gently fry for 2-3 minutes. Remove from the heat. Season with some salt and a little bit of pepper.
Combine together the cauliflower with the white sauce gently by folding together. Add to the skillet evenly, so the florets reach all sides and there's no large gaps. Add the grated cheddar over the top. Preheat your oven to 180 and bake until warmed through for around 5 minutes and the cheese melted. Next place under the grill until the cheese is golden and bubbly.
Remove from the grill and scatter over the caramalised red onions. Grill for a minute more to reheat the onions then remove. Garnish with the crumbled Wensleydale cheese and serve up. Enjoy!
