Make the custard mixture by whisking egg, milk, sugar, vanilla essence and cinnamon in a shallow tray or dish.
Place the sour dough bread slices in the custard. Soak for 5 minutes on each side. Increase the soaking time to 10 on each side if you are using stale bread.
Heat the nonstick or well-seasoned cast iron pan. Add butter. Swirl it around to coat the pan.
Place the soaked bread in the hot pan. Cook for 2-3 minutes each side till it turns golden brown.
Serve with a knob of butter and honey or maple syrup. Dust with caster sugar for a decadent look.
Notes
Toppings
Syrups & spreads like honey, maple syrup & Nutella are great.Fruits, fresh berries, compotes, chocolate chips, and air fried caramelized bananas are some of my son's favorites.
Storing
Unlike French toasts made with softer bread, sourdough French toast can last on the counter for a long. Which also makes it a perfect make-ahead snack for school.If you are not eating the French toast in a couple of hours, leftovers can be stored in an airtight container in the refrigerator for 2-3 days.