Line an 8×8″ baking dish with parchment paper so you can easily lift the fudge out later.
Put the chocolate chips (and coconut oil if using) into a microwave-safe bowl. Heat in 30–60 second bursts, stirring in between, until fully melted and smooth.
Add the cottage cheese, melted chocolate, maple syrup, and vanilla extract into a blender or food processor.
Blend on high until the mixture is completely smooth, stopping to scrape down the sides with a silicone scraper as needed.
Pour the blended fudge mixture into the prepared baking dish and spread it evenly with a spatula.
Place the dish in the freezer for about 4 hours or until firm.
Once set, cut into squares and serve.