In a sizeable saucepan, combine the granulated sugar, brown sugar, evaporated milk, corn syrup, and unsalted butter. Heat over medium-high temperature while continuously stirring until smooth.
Allow the mixture to reach a boil and maintain this state for exactly 3 minutes.
Immediately introduce the vanilla extract and salt to the mixture, stirring thoroughly.
Gradually stir in the shredded coconut and pecans, mixing until evenly distributed.
Use a tablespoon or small scoop to portion out dollops onto baking sheets lined with wax paper.
Allow your cookies to solidify at room temperature or place them in the freezer to expedite the process.