Serves 5-6
Level up your usual cauliflower cheese with a layer of crispy potatoes for a complete meal. You could try mixing up the cheese – use something like Gruyère or a creamy Stilton.
INGREDIENTS
- 1 large cauliflower (about 1.3–1.4kg/3–3lb 3oz), leaves and stalk trimmed away, cut into small florets
- 4 spring onions, trimmed, white parts and green parts separated and sliced
- 70g/2½oz butter
- 1 onion, roughly chopped
- 70g/2½oz plain flour
- 1 tsp English mustard powder
- 750ml/1¼ pint milk
- 150ml/5fl oz vegetable stock
- 150g/5½oz mature cheddar, grated, plus 2 tbsp extra for topping
- 25g/1oz Parmesan, finely grated
- 4 tbsp single cream
- 2 tbsp finely chopped fresh flatleaf parsley, plus extra to garnish (optional)
- ¼ tsp ground white pepper
- salt and freshly ground black pepper
For the topping
- 900g/2lb potatoes, peeled or well scrubbed
- 1 tbsp vegetable oil
METHOD
- Bring a large saucepan of water to the boil. Add the cauliflower and cover with a lid. When the water returns to the boil, cook for just 2 minutes. Drain well and leave in the colander to thoroughly steam dry while you make the sauce. The cauliflower should still have a lot of bite.
- Place the white parts of the spring onions in a saucepan with a lid. Add the butter and onion and, once the butter has melted, put on the lid and cook until really soft but not coloured, stirring occasionally.
- Stir in the flour and mustard powder, then gradually stir in all the milk followed by the stock.
- Cook over a gentle heat, stirring, until it just begins to bubble and has thickened. Remove from the heat and stir in both cheeses until melted. Add the cream, parsley, white pepper and ½ teaspoon of salt.
- Combine the sauce with the cauliflower in a large baking dish. Stir through the green parts of the spring onions.
- To make the topping, bring a large saucepan of water to the boil and add the whole potatoes. Cook for 15 minutes, or until almost cooked.
- Drain and, when cool enough to handle, slice into 5mm/¼in-thick rounds. Layer the potatoes over the cauliflower mixture (you can cover and chill the bake for 1 day or freeze for up to 3 months).
- Preheat the oven to 200C/180C Fan/Gas 6 and brush the topping with the oil. Season the top with salt and pepper, then bake for 30–40 minutes, or until golden and the sauce below is bubbling.
- Preheat the grill and scatter the extra cheddar over the top. Grill briefly to melt the cheese and brown the top. Garnish with parsley, if preferred and serve immediately.


