Place camembert in a brie baking dish or oven-safe baking dish.
Mix lingonberry jam and thyme in a small bowl. (Alternately you can sprinkle some thyme on top the camembert and lingonberry jam.)
Bake camembert for 15 to 20 minutes until cheese is soft. Carefully slice of the top of the camembert and discard. Top with lingonberry jam and thyme mixture. Bake for an additional 3 to 5 minutes.