To make the ganache, melt 4 ounces of the chocolate with the heavy cream over a double boiler. Stir until smooth and chill until firm enough to scoop, about 30 minutes.
Preheat the oven to 400 degrees F and butter 8 (7-ounce) ramekins. Coat the inside with 2 tablespoons of the sugar, making sure to tap out the excess.
In a medium bowl combine the remaining chocolate with 1 cup of butter over a double boiler until melted, stirring occasionally. Remove from heat and cool to room temperature. In large bowl beat together the eggs, egg yolks and the remaining 1/2 cup of sugar until pale, thick and light. Sift the flour over top, and fold in the salt and almond extract. Fold in the cooled chocolate mixture until uniformly combined. Divide equally between the prepared ramekins.
Using a small scoop or tablespoon, form the chilled ganache into 8 balls.
Put 1 into the center of each ramekin and press down slightly to cover with the batter.
(Cakes can be prepared to this point, covered and held in the refrigerator for a few hours until ready to bake.) Arrange the ramekins on a baking sheet and bake until the tops look set, about 10 to 12 minutes. Remove from oven and carefully invert the ramekins onto serving plates. Garnish with raspberry sauce and reserved raspberries and serve immediately.
For Raspberry Sauce and Garnish:
Reserve 8 raspberries for garnish. Mash the remaining raspberries through a fine meshed sieve into a small bowl. Discard the seeds. Add the 2 tablespoons of superfine sugar and the Kirsch and whisk until the sugar is dissolved.