Challah Grilled Cheese Kit- Serves 8
24 Slices American Cheese
First, reheat the crispy pastrami in a saute pan over medium-high heat, 1-2 minutes.
Remove from the heat. Then slice your tomatoes, and set all ingredients aside for building your grilled cheese sandwiches.
Next, build the sandwiches: Lay out a slice of bread and top with a slice of the American cheese. Add the tomato, a piece or two of crispy pastrami, and two more slices of American cheese (alternate them for maximum coverage). Spread the outside of another slice of challah with mayonnaise (or softened butter, or brush with oil), shmearing it from edge to edge. Place on top of the American cheese, with the mayonnaise side facing up, to close the sandwich.
Heat a cast-iron or nonstick pan over medium-low heat for 3-4 minutes, until hot. Carefully pick up the built sandwich and flip it, placing the mayonnaise-slathered slice face down in the center of the skillet. Cook the sandwich, undisturbed, for 4 to 6 minutes, until the cheese begins to melt. (Lower the heat if needed.) While the first side cooks, carefully spread the remaining mayonnaise on the top slice of bread. Carefully flip the sandwich, using a spatula.
Cook for 4 to 5 minutes more, using the back of the spatula to lightly press down on the sandwich to encourage browning and melting