Name: Turnip, potato & mustard gratin
Prep time: 25 min
Cook time: 25 min
Yield: 8
Ingredients: 450ml milk -; 6 turnips , thickly sliced -; 6 large potatoes , thickly sliced -; butter , for greasing -; 1 garlic clove , halved -; 350ml double cream -; 3 tbsp Dijon mustard -

Ingredients for - Turnip, potato & mustard gratin

1. 450ml milk

2. 6 turnips , thickly sliced

3. 6 large potatoes , thickly sliced

4. butter , for greasing

5. 1 garlic clove , halved

6. 350ml double cream

7. 3 tbsp Dijon mustard

How to cook deliciously - Turnip, potato & mustard gratin

1 . Stage

Fill a saucepan with 500ml water, the milk, a good pinch of salt and a grinding of black pepper, then bring to the boil. Add the turnips and potatoes and cook for 2 mins. Strain, drain well and pat dry.

2 . Stage

Heat oven to 180C/160C fan/gas 4. Butter a baking dish and rub the sides with garlic to just add a hint of flavour. Mix the cream and mustard in a large bowl, add the potatoes and turnip, mix until well coated and season really well. Layer into the baking dish, flattening the top level. Can be assembled and chilled a day ahead.

3 . Stage

Bake for 30-40 mins or until golden brown and the turnip and potato are cooked through – check with the point of a sharp knife.