I couldn't find this recipe in her website, so I decided to post the recipe for those who would like to try it.
Mozzarella and Milk Sandwich
2 slices white loaf bread
Remove the bread's crusts, then fill it with the mozzarella cheese leaving a space around the edges to seal the sandwich with. Using your fingers, press the edges of the sandwich together to seal it.
Prepare two bowls to hold the milk and the flour separately. Then in another bowl, beat the egg and add a pinch of salt and pepper to it.
Dip both sides of the sandwich first into the milk, then the flour, then the egg, then fry it in a pan with olive oil. Brown both sides of the sandwich, then take off the heat and drain in paper towels.
Cut sandwich in half and serve hot.