01 - Preheat the oven to 350°F. Grease and line a 9-inch springform pan with parchment paper.
02 - In a clean bowl, beat the egg whites with half of the granulated sugar until stiff glossy peaks form using an electric mixer.
03 - In a separate bowl, whisk the egg yolks with the remaining sugar until pale and thick. Add the melted butter and vanilla extract, whisking to combine.
04 - Fold the almond flour, all-purpose flour, and salt into the yolk mixture until just incorporated.
05 - Gently fold one-third of the beaten egg whites into the batter to lighten it, then carefully fold in the remaining whites until no white streaks remain.
06 - Pour the batter into the prepared springform pan and bake for 20 to 25 minutes until golden brown and a toothpick inserted into the center comes out clean. Cool completely in the pan.
07 - Soak gelatin sheets in cold water for 5 minutes. If using powdered gelatin, sprinkle over 3 tbsp cold water and let bloom for 5 minutes.
08 - Combine raspberries, sugar, and lemon juice in a saucepan over medium heat. Cook until raspberries break down and release their juices, about 5 minutes. Purée and strain through a fine mesh sieve to remove seeds.
09 - Warm 3 tbsp of the raspberry purée and dissolve the bloomed gelatin completely. Stir the gelatin mixture back into the remaining purée. Let cool to room temperature.
10 - Whip the cold heavy cream in a chilled bowl until soft peaks form.
11 - Gently fold the cooled raspberry mixture into the whipped cream until smooth and fully incorporated.
12 - Place the cooled almond sponge in the cleaned springform ring. Spread the raspberry mousse evenly over the sponge, smoothing the top with an offset spatula. Refrigerate for 2 hours until set.
13 - Soak gelatin sheets in cold water for 5 minutes, or bloom powdered gelatin in 1 tbsp cold water.
14 - Heat the raspberry purée and sugar in a small saucepan until warm and sugar dissolves. Remove from heat and dissolve the bloomed gelatin completely. Let cool slightly.
15 - Pour the cooled glaze gently over the set mousse layer. Refrigerate for at least 1 hour until the glaze is completely set. Release from the springform pan and garnish with fresh raspberries and mint leaves before serving.