Whisk 2 egg yolks, 25g sugar, and 1 tsp vanilla paste until light and pale. Sift in 15 g of flour and mix until smooth.
Slowly add 150ml of hot milk (about 70°C) to the egg mixture, whisking constantly. Then, cook over medium heat for about 5 minutes, stirring continuously until the mixture thickens.
Once thickened, remove from heat and stir in 3g of pre-soaked gelatin. Let it cool to room temperature.
In a separate bowl, whisk 200g heavy cream with 10g of sugar until soft peaks form. Slowly fold it into the cooled egg mixture until smooth and velvety.
Line a 16 cm mold with an acetate strip. Spread the diplomat cream into the mold, leaving a hollow space in the center.
Carefully add the chilled mango passion fruit mousse into the center of the diplomat cream. Top with the almond dacquoise, pressing it gently to ensure it stays in place. Then, spread the remaining cream on top. Freeze the cake for at least 4 hours.