How to Make It
Line six 8-ounce ramekins with plastic wrap, leaving 2 inches of overhang.
In a blender, puree 3 half-pints of raspberries with 5 tablespoons of the sugar, the Chambord and the rose water. Strain through a fine sieve.
In a bowl, toss the remaining half-pint of berries with the remaining 1 tablespoon of sugar. In another small bowl, combine the mascarpone with the jam.
Using a 3 1/4-inch round cookie cutter, stamp out a round from each brioche slice. Dip 6 rounds in the berry puree to coat completely; place 1 in each prepared ramekin. Spoon the mascarpone over the rounds, spreading it evenly. Scatter the sugared raspberries on top. Dip the 6 remaining brioche rounds in the remaining puree and place in the ramekins. Fold the overhanging plastic wrap over the top, pressing hard to compact the puddings. Refrigerate for at least 30 minutes and for up to 24 hours.
To serve, peel back the plastic and invert the puddings onto dessert plates. Garnish with raspberries and serve.