Pre-heat a skillet over medium heat and pre-heat an oven to 350 degrees F.

Add the lightly beaten eggs to a large mixing bowl.

To assemble each sandwich, spread 1 Tbsp(s) of aioli across the surface of each pita; Top one side of the pita with 1 slice of gruyere cheese, 4 slices of ham, and 1 more slice of gruyere cheese before folding into a sandwich.

For each sandwich, add 1 Tbsp(s) of butter to the skillet and dip each sandwich in egg wash before griddling both sides for 5 minutes or until golden.

Transfer the skillet to the oven and allow to bake for an additional 5 minutes or until cheese is bubbly.

Cut each sandwich in half and dust with powder sugar before serving.

Combine ingredients in a medium mixing bowl and whisk until mustard is well incorporated.

Transfer the aioli in to an airtight container and refrigerate until needed.