Set a frying pan to medium high heat and drizzle oil in it. While the pan heats up, prep the French toast.
Spread Nutella evenly on two slices of bread. Top with two more slices of bread, to make it like a sandwich.
Crack an egg and pour the milk into a shallow bowl. Whisk the mixture together.
Dip both sides of the Nutella "sandwiches" into the egg mixture and lay in the hot pan.
If the oil is not yet sizzling, feel free to turn the heat up to high. And once you hear the oil cooking, turn the heat back down to medium high.
Cook French toast for 2 minutes or until the bread on the pan is golden brown. Then use a spatula to flip the French toast and cook for another 2-3 minutes or until done.
Turn off the heat and move the French toast to a serving plate.