In a small saucepan cook the cranberries, raspberries and maple syrup over medium heat. After a few minutes mash the cranberries with the back of a wooden spoon and stir frequently. Cook for a few minutes on low.
Bake brie in the oven at 350 degrees for 5-8 minutes. Remove from the oven and place it on a serving plate. It helps if you cook it on parchment paper then you can just lift it out.⠀
Top with the berry sauce, pistachios and mint. Serve immediately with crackers, apples or pear slices. ⠀
Save any leftover berry sauce in the fridge for up to three days.