01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving overhang for easy removal.
02 - In a mixing bowl, combine flour, powdered sugar, and salt. Add cold butter and use a pastry cutter or fingertips to blend until mixture resembles coarse crumbs.
03 - Press mixture evenly into bottom of prepared pan. Bake for 12-15 minutes until lightly golden.
04 - Puree diced mango in blender or food processor until smooth.
05 - Whisk eggs and sugar until slightly pale. Stir in flour, shredded coconut, coconut milk, lime juice, vanilla, baking powder, salt, and mango puree until fully combined.
06 - Pour filling over pre-baked crust. Sprinkle remaining shredded coconut evenly on top.
07 - Bake for 18-22 minutes until edges are golden and center is set but slightly jiggly.
08 - Let cool completely in pan on wire rack. Lift out using parchment overhang and cut into bars.
09 - Store in airtight container in refrigerator for up to 4 days.