Prepare the bacon-onion jam up to 3 days in advance. Cool and store covered in the refrigerator. Warm jam just before serving. | A Wisconsin brie can be used in this recipe. Heat oven to 350°F. Place brie on a parchment-lined baking sheet. Bake for 5-10 minutes or until softened.
Another way to warm up the cheese is to let it stand at room temperature for an hour before serving. The paste will soften under the rind to custard consistency. The rind is also edible and delicious.