- In a small sauté pan, sauté diced shallots in butter over medium heat until soft.
- Add thyme and champagne, and as the mixture simmers, slowly whisk in the cornstarch. Add the Blue Brie and continue to whisk until cheese is melted and creamy. Incorporate 3 ounces of the grated Manchego. If fondue is too thick, add a splash of champagne. If it is too thin, add more Manchego and a pinch of cornstarch. Salt and pepper to taste.