Place the egg into a shallow bottomed bowl and beat lightly. Add in the milk and sugar and mix until well combined.
Place the heart shaped cutter into the centre of a slice of bread and firmly press down and twist to cut the bread into a heart shape. Repeat for each of the 8 slices of bread. Either discard or eat the off cuts!
Place 1tbsp of butter into a medium sized skillet/frying pan and place over a low-medium heat to melt the butter.
Spread 1tsp of Nutella onto one side of each heart. Leave a slight gap around the edge.
Dip the side of bread that isn't covered in Nutella into the egg mixture, holding it down for 3-5 seconds, then place into your hot pan.
Sprinkle a 1/4 of the diced strawberries on top of the brioche heart in the pan and then take another heart shaped brioche and dunk the side that isn't covered in Nutella into the egg and milk mixture.
Place that piece Nutella side down on top of the strawberries and press down with a spatula.
Repeat until you have 4 heart shaped sandwiches.
Fry each French toast until golden, 2-3 minutes, then flip and fry the other side until golden, another 2-3 minutes.
Once cooked, divide the French Toasts between 2 small plates, drizzle warm Nutella over the top of the French Toasts, then top with strawberry halves and a sprinkling of icing sugar.
Serve immediately and enjoy!