Mango and labne slice

Name: Mango and labne slice
Prep time: 15 min
Total time: 15 min
Yield: 4 porties
Cuisine: Belgian
Ingredients: Greek-style natural yoghurt; unsalted butter; gingernut biscuits; shredded coconut; pouring (whipping) cream; gelatine powder; icing sugar; frozen mango; caster sugar; water