In a medium saucepan, melt the butter over medium heat.
Then, add the brown sugar and milk, stirring continuously until the mixture comes to a boil.
Allow it to boil for exactly one minute, continuing to stir to avoid burning.
Remove the saucepan from heat and add in the vanilla extract, chopped pecans, and shredded coconut.
Stir everything together until well combined.
Using a spoon, drop spoonfuls of the mixture onto parchment paper or a wax paper-lined baking sheet.
Let them sit at room temperature until they cool and set, typically 30 minutes to an hour.
Enjoy your delicious No Bake Pecan Coconut Praline Cookies!