Prepare the toast: Trim the four edges of the bread slices with a knife to make them neat. Place the trimmed bread slices on a clean chopping board for later use.

Spread the sauce and add the side ingredients: Take one slice of toast and evenly spread the peanut butter on its surface, reaching the edges to ensure every bite has peanut butter. Once the peanut butter is spread, arrange the banana slices neatly on top, spreading them evenly.

Assemble the toast: Gently place the second slice of toast on top of the one with the banana slices, press lightly to help the two slices stick together more firmly. Then, cut the assembled toast into four small pieces.

Make the egg-milk mixture: Crack 1 egg into a shallow bowl, then pour in 20ml of milk. Use chopsticks or a whisk to beat the egg and milk together until well combined, forming a smooth egg-milk mixture.

Coat the toast with egg-milk mixture: Place the assembled toast into the egg-milk mixture, ensuring each side is evenly coated. You can let the toast soak for a bit to absorb more of the mixture, around 15-20 seconds per side, but be careful not to soak it too long, or it will become soggy.

Fry the toast: Heat a frying pan over low heat, add 15g butter, and let it melt completely, forming a shiny coating. Place the egg-coated toast into the pan. Fry on low heat, flipping the toast regularly to ensure each side becomes golden brown. Each side should take about 2-3 minutes to cook. Be careful not to burn it.

Decoration and plating(optional): Once the toast is fried, place it on a plate. Add two spoonfuls of yogurt in the center of the toast. You can decorate the top with fresh fruit slices, such as strawberries or blueberries, according to your preference. Finally, sprinkle some powdered sugar for decoration (skip if you don't like sweet food).