Not your average trifle!
Ingredients
For the mash potatoes
1.5kg (3lb) white potatoes, peeled and cut into large chunks
30g (1oz) salted butter, diced
200ml (1/3 pint) whole milk, warmed
For the mince layer
1 tbsp olive oil
1 onion, chopped
1 celery stick, chopped
1 garlic clove, crushed
1 tbsp...