Make and bake the base
22 minMix the flour, shredded coconut, and brown sugar. Pour in the melted butter and stir until the mixture resembles damp sand. Line a 20 × 20 cm square pan with parchment paper, leaving an overhang on the sides, and press the mixture down firmly with the bottom of a glass. Bake at 180°C / 355°F for 18 minutes, until the edges turn golden.