Make the cinnamon butter: Combine all the ingredients: softened butter, brown sugar, flour, and cinnamon in a bowl until everything is well combined and you have a thick paste.
75 grams butter, 65 grams packed brown sugar, 8 grams all-purpose flour, 10 grams cinnamon
Make the French toast custard: In a bowl, mix all the ingredients (except for the bread and butter) with a hand whisk until well combined – eggs, milk, brown sugar, and vanilla.
2 eggs, 100 ml full-fat milk, 50 grams brown sugar, 1 tsp vanilla essence
Assemble: Spread a thick layer of the cinnamon butter on two bread slices and top each with a plain bread slice, pushing down gently to seal.
4 slices white sandwich bread
Heat the pan and add the butter or ghee in it. While it heats, place the cinnamon bread sandwich in the French Toast custard and let it soak for a minute on each side. Don't soak it for too long or the bread will fall apart.
50 grams ghee or butter
Place the soaked bread sandwich on the pan and cook on both sides on medium heat until golden brown.
Make the icing sugar glaze: mix the icing sugar and warm milk until you have a thick glaze-like consistency. If the glaze is too thin, add more icing sugar until you reach your desired consistency.
30 grams icing sugar, 10 ml warm milk
Pour the glaze on top of the French Toast and enjoy warm.