On a gas stove, turn a burner to high and balance your pepper directly over the grates. Let it sit and allow the skin to blister and blacken. Using tongs, turn the pepper to another side. Repeat until the pepper is charred on all sides. (Pay close attention, so it chars, but doesn’t catch fire.)Transfer the pepper to a Ziploc bag or a bowl covered with plastic wrap. Let sit for 5-10 minutes, allowing the steam to loosen the skin. Once cool to the touch, remove the skin with your fingers. Slice into one side of the pepper and discard the stem, seeds, and veins.
Heat a grill pan or nonstick skillet over medium.
Spread 1 teaspoon butter on one side of each piece of bread. On the unbuttered side top with two slices of brie, 1 & 1/2 tablespoons of preserves, followed by half of the pepper. Cover with remaining bread, butter side up. Repeat with the other sandwich.
Place sandwiches on the hot grill pan buttered side down. Cook sandwiches for about 4 minutes per side until toasted and cheese is melted. (Turn down the heat if it looks like the bread is browning too fast.)
Serve immediately and enjoy!
Notes
Roast the peppers in the oven instead. If you do not have a gas stove, you can roast the pepper on a baking sheet under the broiler of your oven. Follow the same process.Substitute for cherry preserves. Cherry jam is the best in this sandwich, but if you can't find it, an ok substitute would be cranberry sauce, plum jam, or gooseberry jam.Adjust the ingredient amounts. The amount of ingredients can vary depending on how big your slices of bread are. If you need to use a bit more of everything to fill up the slices, do that.