Preheat your oven to 350°F (175°C). Line a 9x9-inch pan with parchment paper so the bars won’t stick. This also makes it easy to lift them out once they’re baked.
In a bowl, whisk together flour, baking soda, and salt. This ensures the leavening is evenly distributed and gives a light, even texture.
In a separate bowl, beat the softened butter with granulated and brown sugar until light and fluffy. Add the egg and vanilla extract, mixing until smooth. This step is key for a soft, chewy bar.
Gradually fold the dry ingredients into the wet mixture. Stir in toasted coconut, caramel bits, and chocolate chips. Make sure everything is evenly distributed for consistent flavor in each bite.
Spread the batter evenly in the prepared pan. Bake for 20-25 minutes or until lightly golden and set in the center. The bars will firm up more as they cool.
Let the bars cool completely in the pan. Lift them out using the parchment paper and slice into squares. Serve at room temperature or slightly chilled.