Place wine and butter in a microwave-safe dish or a small saucepan. Heat just until butter is melted.

Combine flour, baking powder and salt in a large mixing bowl. Beat in wine mixture with the paddle attachment of an electric mixer or beat vigorously with a wooden spoon. Add egg and beat until smooth. Gather dough into a ball and let cool to room temperature.

While dough cools, prepare fondue. Heat cream to a simmer in a microwave-safe dish or small saucepan. Add chocolate to hot cream, remove from heat and let stand 3 minutes. Stir until chocolate is melted. Stir in brandy.

Roll dough on a floured surface to approximately 10 x 15 x 1/8-inch thick rectangle. Cut into twelve 2-1/2 x 5-inch squares. Spoon 1 teaspoon jam onto each square and top with a blackberry. Brush edges with water; fold and press to seal. Heat 2 inches of oil to 350°F in a deep skillet or saucepan. Carefully immerse ravioli into hot oil. Fry 3 to 4 minutes, turning once, until golden brown. Drain briefly on paper towel.

Place 3 hot ravioli onto a warm dessert plate; dust with confectioners' sugar. Drizzle warm chocolate fondue over ravioli and garnish with remaining blackberries. Serve immediately.