Add a pat of butter onto your pan and place over medium heat.
In a large bowl whisk together the sugar and eggs. Add in the milk and cream, vanilla and cinnamon and whisk until completely combined.
Soak the first slice or two of bread in the custard and once it’s absorbed a good amount flip over to soak the other side.
Carefully transfer the bread to your hot pan and cook until golden brown. Flip over and cook other side until golden. Serve warm.