Wash, clean and halve the strawberries. Beat the mascarpone, egg yolk and vanilla sugar until creamy. Spread the ladyfingers or toppas in 8 bowls or fill in a large baking dish. Mix the banana juice with coconut milk and drizzle the ladyfingers or toppas with it. Spread the strawberries and mascarpone cream on top. Sprinkle with the desiccated coconut. Allow to steep in the refrigerator for approx. 2 hours until consumption.