01 -
Crank your oven up to 350°F and let it get hot.
02 -
Dump the crumbs, salt, brown sugar, and toasted coconut into a big bowl. Stir 'em up so it’s all even, then pour in that melted butter. Keep mixing till it looks like wet sand.
03 -
Press your crust into the bottom and sides of a 9-inch pan. Bake it for 10 minutes, so it just starts to turn golden. Fix any weird edges with a spoon while it’s still warm.
04 -
Turn the oven down to 325°F. In a heat-safe bowl, whisk your mango puree, lime juice and zest, vanilla, sugar, a pinch of salt, and all those yolks till it’s totally smooth.
05 -
Set the bowl over a pan of simmering water (double boiler style). Keep whisking for about 20 minutes. When it’s thick and coats the back of a spoon, pull it off heat and stir in all the butter, a little at a time, till it’s smooth and glossy.
06 -
Pour that silky curd into your baked crust and smooth it out. Bake for about 15–17 minutes so it sets, but wobbles a touch in the middle.
07 -
Put the tart on a rack to cool off, then stick it in the fridge for at least 4 hours—overnight's even better. That way, it sets up firm.
08 -
Pile on Swiss meringue, mango slices, coconut bits, and lime wedges right before serving. Use what you like!