1. Cut the brie into 1/2 inch squares (leave the rind on if you like). Place on a dinner plate and put the cheese in the freezed while you thaw the puff pastry for 30 minutes at room temperatrue.
2. Unfold the thawed pastry, press together seams and roll lightly with a rolling pin to smooth it out. Cut each sheet into fourths, then cut each fourth in half. Cut the halves in half to make 16 squares per sheet.
3. Lightly spray a minimuffin pan with nonstick spray. Fit a piece of dough into each cup, pushing into the cup but leaving the edges sticking up. Place a dab of pepper jelly in each cup, then top with a piece of cheese.
4. Bake at 400 degrees for 10-15 minutes, until golden. Serve warm. (Can be prepared ahead and refrigerated until ready to bake, or you can bake them and rewarm about 10 minutes in a 350 degree oven before serving).