Bridget Jones's Shepherd's Pie Recipe

Heat the 2 tablespoons of olive oil in a large frying pan. Add the chopped onions and cook until softened.

Tip in the 600 grams of ground lamb, breaking up any lumps with the back of your spoon as it browns all over.

For the mash, boil the 700 grams of potatoes until tender, then drain them well in a sieve and transfer to a clean bowl.

Add the 55 milliliters of milk, 75 grams of butter, and the 1 egg yolk. Mash everything together until smooth and creamy, then season generously with salt and freshly ground black pepper.