By The Dirty Apron INGREDIENTS Puff pastry sheet (10 x 3 inch, rolled thin) Large onion (1) Soft goat cheese (170g) Olive oil (2 tsp) Toasted walnuts (2 tbsp) Grape tomatoes (12) Vegetable oil Salt & pepper Egg (1, beaten) DIRECTIONS Preheat oven to 450 F Heat vegetable oil in a small sauté pan over medium heat. Add onions and, stirring constantly. Cook until golden brown and evenly caramelized. (Season the onions with salt and pepper and then remove from heat.) While the onions are caramelizing, prick the puff pastry all over with a fork, brush with egg wash and bake for 8 minutes. Remove pastry from oven and using a spoon, push down the center of the puff pastry to make an indentation for the goat cheese, onion, tomatoes and walnuts. Spread the goat cheese in the middle of the pastry and top with the onions, tomatoes and…