01 - Preheat oven to 350°F. Grease a 9x13-inch baking pan lightly and line with parchment paper for easy removal.
02 - Whisk sweet rice flour, sugar, baking powder, and salt in a large mixing bowl until evenly blended.
03 - In a separate bowl, whisk coconut milk, whole milk, eggs, melted butter, and vanilla extract until smooth and fully incorporated.
04 - Pour wet mixture into dry ingredients. Stir with spatula or whisk until just combined and smooth—avoid overmixing.
05 - Transfer batter to prepared pan. Gently tap pan on counter to release trapped air bubbles.
06 - Sprinkle shredded coconut evenly over surface of batter.
07 - Bake for 55-60 minutes until edges are golden brown and toothpick inserted in center comes out mostly clean.
08 - Cool completely in pan on wire rack before slicing into squares or bars.