8 graham crackers
2 tablespoons butter, melted
4 squares good quality white chocolate
4 large marshmallows
8 ripe blackberries, lightly muddled
Preheat the broiler, and position a rack on the highest possible rung.
Brush each of the graham crackers on both sides with melted butter.
Break each cracker in half, and top four of the halves with a square of white chocolate. Place these halves on a large plate, and microwave for about 30 seconds, until the chocolate just begins to melt.
Transfer the cracker halves to a baking sheet, and top with the marshmallows. Place under the broiler for about 90 seconds to 2 minutes, rotating halfway to ensure even marshmallow toasting.
Once toasted, remove them from the oven, and top with the muddled blackberries and remaining graham cracker halves. Serve immediately.