In a medium-sized pan over medium to high heat, pour 1 tbsp of canola oil.
Pour in the Livers and salt them.
Turn until browned on all sides. Make sure to brown them to a darker shade than the regular "well done" liver. This will give more umami to the dish, but don't burn them.
When browned take them out of the pan.
Pour 1 tbsp of canola oil into a pan over low to medium heat. I suggest using a non-stick pan but it is not mandatory. You can use the same pan used for the livers.
Add the onion to the pan and cook until it becomes translucent.
Add the butter.
When the butter melts, add the garlic.
If the garlic is crushed, wait for ½-1 minute and add the wine. If it's chopped, add the wine when the garlic's fragrance turns from spicy to sweet. In any case, don't let the garlic brown or burn.
Add the cooked livers and the nutmeg.
For a thin sauce - cook in wine until most of the liquid evaporates.
For a thicker sauce (optional) - cook until about half evaporates, then mix 1 tsp of cornstarch with a bit of room temperature water and add a bit slowly while stirring to avoid creating clumps. Keep adding until you get the consistency you like.