In a medium bowl, whisk together the eggs, milk, vanilla extract and ground cinnamon until well combined. Then lay brioche slices in a single layer in a small baking pan.
Pour over the egg mixture on top of the brioche slices, completely covering them. Turn the slices over a few times to make sure the entire slices are covered in the egg mixture. Then leave to soak for 10 minutes. Meanwhile, turn your oven onto its lowest setting.
Once the brioche slices have soaked up all of the egg mixture, place a large frying pan over a medium-low heat and add the knob of butter. Once the butter has melted, add two of the soaked brioche slices and cook for 3 minutes on each side until golden brown and crisp.
Place the cooked slices of French toast in a baking tray in the oven to keep warm, while you fry the remaining two soaked brioche slices (you may need to add another knob of butter).
Once the final two slices are fully cooked, remove the first slices from the oven. Then plate up and add toppings as desired.
Notes
Best served straight away.
Keyword brioche, cinnamon, eggy bread, french toast, pain perdu