01 - Pulse flour, powdered sugar, and salt in a food processor. Add cold butter and pulse until coarse crumbs form. Mix in egg yolk and ice water until dough just comes together.
02 - Form dough into a disk on a floured surface, wrap in plastic, and refrigerate for 30 minutes.
03 - Preheat oven to 350°F. Roll dough to fit a 9-inch tart pan. Press into pan, trim excess, and prick base with a fork.
04 - Line with parchment and baking weights. Bake for 15 minutes, then remove weights and paper. Bake 10–12 minutes longer until golden. Cool completely.
05 - Whisk mango puree, sugar, eggs, egg yolks, and lime juice in a saucepan. Cook over medium-low heat, stirring constantly, until thickened, about 8–10 minutes.
06 - Remove from heat and whisk in butter until smooth. Strain through a fine sieve and let cool for 10 minutes.
07 - Pour mango curd into cooled tart shell. Smooth the top and refrigerate for at least 1 hour until set.
08 - Top with fresh mango slices, mint, or edible flowers before serving.