Prepare a 9 x 5 loaf pan by lining with parchment paper.
In a medium bowl, mix together creamy peanut butter, softened coconut oil, maple syrup, and vanilla extract.
Transfer fudge to prepared pan. Sprinkle with flaky sea salt.
Freeze for 20 minutes or until fudge is firm. Finish with more flaky sea salt and serve!
Store in freezer as it will melt if left out!