Hours before, place the milk, onion, garlic and bay leaf in a saucepan and simmer for 10 minutes. Set aside and leave to cool completely.
Once cooled, preheat your oven to Gas mark 7/220c/200c fan/425F.
Using a pan steamer, place the sliced potato in the middle tier, add boiling water to the bottom and season the potato with a sprinkle of salt and simmer the water for 10 minutes.
Transfer to a large baking dish and spread out the slices as thinly as you can (you make need to separate some with the prongs of a fork).
In a large mixing bowl, whisk the eggs then stir in the yogurt and cold infused milk and mix well.
Pour over the potatoes then sprinkle over the cheese and nutmeg.
Place in the oven for 50 minutes to 1 hour or until the top is golden, then serve.