Preheat oven to 350°F (180°C). In a large bowl, beat together eggs, brown sugar and vanilla for 2 minutes. Stir in milk. Add bread. Mix and let sit for 45 minutes.
Add blueberries. Pour mixture into 8-inch (20 cm) square mold. Sprinkle with chocolate and almonds, pressing pieces lightly into surface. Bake 55 to 60 minutes. Serve warm or chilled.