Preheat your oven to 350°F (175°C) and line a 9x13-inch baking pan with parchment paper, spraying it lightly with non-stick spray.

Melt the unsalted butter until golden and let it cool slightly.

Combine the melted butter with granulated sugar and brown sugar using a hand mixer until smooth and creamy.

Add large eggs and vanilla extract, beating until fully integrated and fluffy.

Gradually incorporate flour, baking powder, and salt, mixing on low speed until just combined.

Fold in sweetened shredded coconut until evenly distributed throughout the batter.

Pour the batter into the prepared baking pan and smooth the top.

Bake for 35-40 minutes until a toothpick inserted in the center comes out clean.

Remove from the oven and let cool completely on a wire rack before cutting into squares.