Mix the minced beef and salt together in a stand mixer until combined.
Add some of the finley chopped onion, black pepper and potato starch to the meat mixture.
Add a little milk and continue mixing. Alternate between the remaing onion, pepper and potato starch and a little milk at a time until everything is well combined.
Spread half of the meat mixture in the centre of a deep baking tray, roughly in the shape and size of a loaf bread.
Add the bacon.
Add the remaining meat mixture on top and shape it into a meatloaf. Leavy plenty of space around it for the sauce.
Bake at 175°C for about 30-40 minutes, until the meatloaf starts toturn golden brown.
While the meatloaf is baking, whisk together the heavy cream, milk and mustard until well combined.
Pour the cream sauce over and around the meatloaf.
Return to the oven and bake for another 20-30 minutes. Spoon some of the sauce from the tray over the meatloaf a few times while it bakes.
If the sauce becomes too thick while baking, add a little more milk and whisk it into the sauce.
Take the meatloaf out of the oven and cut it into slices. Arrange the slices in a deep serving dish.
Whisk the sauce together in the baking tray until well combined, then pour it over the sliced meatloaf and serve.