Heat a pan up on medium-high heat with 2 tbsp olive oil. Rub one whole garlic clove over the bottom of the pan, and let sit.

Add the chopped up onion and fry until soft

Add the bacon lardons to the onion. Cook until it begins to brown and the fat starts bubbling out of it. Take out the garlic clove.

In a small bowl, whisk together 3 egg yolks, 2 1/2 tbs of Parmesan cheese, 150ml of double cream and a pinch of black pepper and salt

Dump the pasta into the onion and bacon mixture and mix around. Turn the heat off on the stove (very important!). Pour the pasta water onto the pasta, quickly followed by the egg and cream mixture. Begin to mix the egg mixture and pasta together, taking care to work quickly so the egg doesn't cook in the hot pan.