Add walnuts, butter, and granulated sugar to a small saucepan over medium heat. Toss walnuts to coat and cook for 5 minutes until butter and sugar have melted, stirring frequently so sugar doesn't burn. Once sugar has coated the walnuts, quickly transfer the nuts the parchment paper and spread out so that walnuts don't stick together. Let walnuts cool.
1 cup walnuts, 1/2 cup granulated sugar, 1 tablespoon unsalted butter
Place brie in a rimmed baking dish (or cast iron skillet). If you don't like the rind, trim off the top of the brie. Sprinkle top of brie with brown sugar.
13.2 ounce brie, 2 tablespoon light brown sugar
Bake brie for 12-14 minutes or until brie is heated through. Remove from oven and allow brie to cool for 5 minutes.
While brie bakes, add honey and balsamic vinegar to a microwave safe bowl and heat for 1 minute. Remove from microwave, stir, then add raspberries and toss to coat. Let raspberries sit in warm honey balsamic mixture for 2-3 minutes.
1/4 cup honey, 1/2 teaspoon balsamic vinegar, 1/3 cup raspberries
To serve, sprinkle candied walnuts on top of baked brie, then scoop out raspberries and arrange on top of walnuts. Drizzle honey balsamic mixture generously on and around the brie. Use crackers or bread for dipping.