Preheat the oven to 350 F.
Line a 9x13-inch baking pan with parchment paper.
Prepare the crust. Mix together all-purpose flour, light brown sugar, and salt using a whisk. Then, stir in the melted butter and vanilla extract. Transfer this mixture to the baking pan and Spread evenly by pressing the mixture down firmly using your hands or the back of the measuring cup.
Bake for about 15 minutes or until the crust is golden brown. Remove from the oven and let cool for 10 minutes.
Reduce the oven temperature to 325 F.
Prepare the filling. In a large bowl, whisk together eggs and egg yolks. Then, whisk in condensed milk, melted butter, vanilla extract, flour, light brown sugar, and salt. When combined, stir in shredded coconut using a rubber spatula. Pour over the cooled crust.
Bake for 25-35 minutes or until slightly golden. Remove from the oven and top with shredded coconut and coconut chips.
Let cool completely before removing the coconut bars from the pan. Slice and serve!