Preheat your oven to 325°F (163°C) and line a baking sheet with parchment paper.
In a large mixing bowl, combine the sweetened condensed milk, fresh lime juice, lime zest, egg white, vanilla extract, and salt. Whisk until well combined.
Gently fold in the sweetened coconut flakes into the wet mixture.
Using a spoon or cookie scoop, drop heaping tablespoons of the mixture onto the prepared baking sheet.
Bake in the preheated oven for about 18-20 minutes or until the tops are golden brown.
Once baked, let them cool on the baking sheet for a few minutes before transferring them to a wire rack.
Melt the chopped white chocolate in a melt-proof bowl over a double boiler or in the microwave.
Once the macaroons are cooled, drizzle or dip them in the melted white chocolate.
Place the macaroons back on a wire rack or parchment-lined tray to set the chocolate.
