Line a large cookie sheet with parchment paper.
Add chocolate chips to a large microwave-safe mixing bowl. Heat chocolate in 15-30 second intervals, stirring in between with a spatula until chocolate is completely melted and smooth.
Add in lemon juice and whisk until lemon juice is fully incorporated and mixture becomes uniform in color and smooth.
Stir in the zest and coconut until they are evenly mixed in.
Use a 1 tbsp cookie scoop to scoop up cookie batter and place onto the prepared cookie sheet, spacing cookies 2 inches apart.
Use the back of a spoon to flatten cookies into a thick round disk (about ¼ inch thick).
If desired, garnish top of cookies with additional zest.
Place cookies into fridge to set for about one hour.
When cookies are set, they should feel firm and you should be able to peel the cookies off of the parchment paper.
Cookies can be eaten straight out of the fridge or let them sit at room temperature for about 15 minutes for a softer inside.
Store uneaten cookies in the fridge.
