Make the French Toast Bites first:
Place eggs, milk, vanilla extract and sugar into a shallow bowl and beat lightly until combined.
Place 1/2 tbsp of butter into a medium sized skillet and place on a medium heat.
While the pan is heating up, dunk 8-10 of your bread cubes into the milk/egg mixture. Make sure you get all sides, but make sure it's a quick dunk and you don't leave it in there for ages as the bread will go soggy.
Once the pan is hot, place the bread cubes into the pan and fry until golden, 20-30 seconds per side.
Place a couple of sheets of kitchen towels on a large plate and transfer the cooked French Toast bites to the plate to cool.
Repeat this process, doing 8-10 bread cubes at a time until you have exhausted your supplies. As you remove batches, place another 1/2 tbsp of butter into the pan to heat. Be careful not to brown the butter, if you think the pan is getting too hot, turn the heat down.
Leave the French toast bites to cool for around 10-15 minutes.
Make the sugar coating next:
Place white sugar and spices into a shallow bowl and mix gently until well combined and there are no lumps of spices. Leave to one side.
Make the Apple Pie dipping sauce:
Place the grated apple, spices, brown sugar, salt and cornstarch into a medium sized saucepan and stir until the apples are coated in the dry mixture.
Add in the water and place over a low-medium heat.
Bring to a boil and then turn down to simmer for 5-10 minutes, until the mixture is thickened and the apple is tender.
Leave to cool for 5-10 minutes, and then either using a hand blender or mini food processor, blitz the dipping sauce until smooth.