01 - Preheat oven to 350°F. Line bottom of 9-inch springform pan with parchment paper.
02 - Beat egg yolks with half the sugar (1.75 oz) until pale and thick. Add melted butter and vanilla, mixing gently.
03 - Whisk egg whites and salt to soft peaks in separate bowl. Gradually add remaining sugar and whip to stiff peaks.
04 - Fold almond flour and all-purpose flour into yolk mixture. Fold in one-third of egg whites to loosen, then gently fold in remaining whites until just combined.
05 - Pour batter into prepared pan. Bake 18-20 minutes until golden and toothpick comes out clean. Cool completely in pan.
06 - Soak leaf gelatin in cold water 5 minutes. Puree raspberries with sugar and lemon juice; strain seeds.
07 - Heat 1/3 of puree gently. Add squeezed gelatin (or sprinkle powdered gelatin, let bloom 5 minutes, then dissolve). Stir until melted, combine with remaining puree. Cool to room temperature.
08 - Whip cold heavy cream to soft peaks. Gently fold cooled raspberry mixture into whipped cream until smooth.
09 - Spread raspberry mousse evenly over cooled almond sponge in springform pan. Smooth top. Chill at least 4 hours until fully set.
10 - Remove cake from pan. Top with fresh raspberries, dust with powdered sugar, garnish with mint leaves.