1-First, prepare your bread by cutting the 1/2 loaf (about 8 ounces) of French bread baguette into four sandwich-size pieces. This gives you a sturdy base for the fillings.

2-Next, spread the 8 ounces of ‘nduja evenly on four of the bread slices to add that bold, spicy taste.

3-Then, layer two of the ‘nduja-covered slices with the 4 slices (1 ounce each) of mozzarella cheese and the 4 slices (1 ounce each) of muenster cheese for a melty, flavorful center. Top these with the remaining bread slices, making sure the ‘nduja side is facing down to seal in the goodness.

4-Now, spread the 4 tablespoons of softened butter on the outside of each sandwich for a golden, crispy finish. Heat a large skillet over medium-low heat and place one sandwich in it. Cook for 2-3 minutes until the bottom is golden brown, then flip and cook uncovered for 2-4 minutes longer until the bread is golden and the cheeses melt completely.

5-Repeat the process with the second sandwich, and consider covering the skillet during cooking to help the cheese melt more thoroughly though this step is optional for a faster method. For the best results with this how to make nduja grilled cheese approach, keep an eye on the heat to avoid burning while achieving that perfect crispy texture.