Tarte Flambee - Confessions of a Chocoholic

Preheat oven to 400 degrees FOn a lightly floured surface, roll out your puff pastry. You can further stretch and flatten it using a rolling pin, so that it fits your baking sheet more evenly. Line a 9x12 baking sheet with parchment paper before fitting dough in.Place bacon in a medium skillet and cook over medium-high heat, stirring, until lightly browned and starting to crisp, about 7 minutes. Transfer bacon to a paper towel-lined plate and set aside. Drain all but 2 tablespoons of bacon fat and place skillet over medium-low heat.Add onions and season with salt and pepper; cook, stirring occasionally, until soft and translucent, about 12 minutes. Remove onions from heat and set aside.In a small bowl, mix together creme fraiche, salt, and pepper. Spread the creme fraiche mixture over dough. Top with onions, bacon, and grueyere cheese.Bake for 12-15 minutes, until the edges are puffy and golden. Sprinkle with chives and cut into squares before serving.