Trim the crusts off 6 slices of bread.

Spread mustard on one slice of bread, then layer with ham and cheese.

Spread jam on another slice of bread and place it jam-side down onto the cheese layer.

Repeat layering with jam, cheese, ham, and mustard on additional slices of bread.

Whisk 2 eggs with a pinch of salt until smooth.

Dip the assembled sandwich into the egg mixture, coating all sides evenly.

Heat a frying pan with oil over low heat and cook the sandwich until golden brown on all sides.

Flip and cook the sandwich evenly on all sides.