1-Start by preheating your oven to 400°F (200°C) and lining a baking sheet with parchment paper to avoid any sticking. This simple setup helps ensure your bites come out perfectly golden and puffed.

2-Begin by mixing the chopped pistachios, honey, rosemary, sea salt, and black pepper in a bowl for a flavorful coating. Roll out the puff pastry on a lightly floured surface and cut it into 3×3 inch squares, which makes it easy to handle. Place about 1 ounce of Brie in the center of each square, then add 1-2 teaspoons of the pistachio mixture on top.

3-Next, fold the pastry corners over the filling and pinch the seams tightly to seal everything in place. Brush the tops with the beaten egg for that appealing golden crust, which is key for a professional finish. Bake the bites for 15-20 minutes until they are puffed and golden, then let them cool briefly before adding optional garnishes like cranberries or pomegranate seeds.