Assemble your grilled cheese by spreading both waffles with an even amount of Nutella.
Top one waffle with sliced brie, then add the raspberries. Top with the other waffle (Nutella side down).
Heat a medium skillet over medium-high heat. Add the waffle grilled cheese to the pan and cook until the cheese is melted, approximately 2 to 3 minutes per side.
Remove from pan. Cut in half and serve each half as its own sandwich (trust me, it’s rich so this’ll be PLENTY).