Line a 2-quart baking dish with wax paper. In a large bowl whisk together coconut oil, peanut butter, cocoa powder, honey, and vanilla extract.
Pour the mixture into the lined baking dish. Cover the baking dish and lace into the refrigerator and refrigerator until solid throughout (at least 3 hours). Remove from the refrigerator and cut into squares.
Store the fudge in the refrigerator. Take it out only for serving as it should not be left at room temperature for long periods of time.