You can use either double cream or triple cream brie! They differ in their fat percentages. Double cream contains 60-75% milk-fat, while triple cream contains over 75%. Triple cream brie is thus even softer and richer than double cream! This means that if you use it in this recipe, your resulting whipped cheese will be super duper creamy. However, both will work just fine! Double cream brie still results in an ultra creamy spread.