Preheat oven to 350°F and line a baking sheet with unbleached parchment paper.
Combine cookie ingredients: Add all cookie ingredients to a food processor and blend until a ball forms, about 15-30 seconds. The dough should feel slightly sticky, but not wet.
Roll dough: Transfer the dough to a piece of parchment paper. Place a second piece on top and roll to about ¼ inch thick. Cut into circles using a 1.6 inch round cookie cutter. Place on the lined baking sheet - they won't spread so you can place them close together. Re-roll scraps and repeat until all dough is used. I made 18-26 cookies (amount will differ based on thickness and size of cookie cutter). I prefer them on the thinner side and get around 24. Bake for 8-10 minutes depending on thickness. Remove from the oven and slide the parchment paper off the baking sheet onto the counter. If any cookies puffed up, gently press down with a fork while still warm. Cool completely for at least 10 minutes before dipping in chocolate.
Melt chocolate: when the cookies are almost done cooling, add chocolate chips and coconut oil to a microwave-safe bowl. Microwave for 1 min 30 seconds, stirring every 30 seconds to ensure even melting. To prevent burning, check every 10-15 seconds for the last 30 seconds.
Coat cookies: Using a fork, dip each cookie into the melted chocolate, flipping to coat both sides. Tap the fork against the side of the bowl to remove excess chocolate. Place back onto the parchment-lined baking sheet. Repeat until all cookies are coated. Freeze for at least 20 minutes or until the chocolate is completely hardened.
Optional chocolate drizzle: after 10 minutes in the freezer, remove the cookies and drizzle any remaining chocolate over the top using a fork, moving your wrist back and forth quickly for thin drizzle lines. Return to the freezer for the remaining 10 minutes.