01 - Roll each bread slice with a rolling pin until thin and pliable, creating an even surface for filling.
02 - Arrange ham, turkey, and Swiss cheese evenly across each flattened bread slice.
03 - Roll each bread slice tightly into a compact log, pressing gently to seal the seam securely.
04 - Whisk eggs, milk, salt, and pepper in a shallow bowl until fully combined.
05 - Dip each roll in the egg mixture, turning to coat all sides evenly.
06 - Melt butter in a large nonstick skillet over medium heat until foaming subsides.
07 - Place rolls seam-side down in the skillet. Cook, turning frequently, until all sides are golden brown and cheese melts, approximately 6–8 minutes.
08 - Transfer to a serving plate, dust generously with powdered sugar, and serve immediately with raspberry jam for dipping.