01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - In a large bowl, stir together shredded coconut, sugar, egg whites, vanilla extract, and salt until fully incorporated.
03 - Using a tablespoon or small ice cream scoop, place mounds of mixture onto the baking sheet about 1 inch apart.
04 - Bake for 18 to 20 minutes until edges and tops turn golden brown.
05 - Remove from oven and allow macaroons to cool completely on the baking sheet.
06 - Gently melt dark chocolate and coconut oil (if using) in a heatproof bowl over simmering water or in short microwave bursts, stirring until smooth.
07 - Dip bottoms of macaroons into melted chocolate and place back on parchment. Drizzle remaining chocolate over tops using a fork or piping bag.
08 - Allow chocolate to firm at room temperature or refrigerate for 10 to 15 minutes before serving.