Preheat oven to 375°f degrees. Spray a mini muffin tin with cooking spray. Spread a little flour out onto your counter. Then roll out crescent roll dough and pinch seams together. Cut crescent roll dough into 24 equal-sized squares. Place squares into muffin tin slots.

Cut brie into small pieces and place inside the crescent dough squares. Top with a generous spoonful of cranberry sauce, and a little sprig of rosemary.

Bake until the crescent dough is a light golden brown (about 15 minutes). Then serve warm!