Make sure all of your ingredients are at room temperature; they will be difficult to mix if anything is cold. In a small mixing bowl, combine the peanut butter, coconut oil, maple syrup, and salt. Use a whisk to mix well.
Adjust any flavoring to taste, adding more peanut butter if desired. For a runnier consistency, you can add more coconut oil, too. It won't affect the flavor as long as you're using refined coconut oil. Once it's well mixed, pour it over your favorite ice cream and watch it harden in about 30 to 60 seconds.
Store any leftover magic shell in an airtight container at room temperature for up to 5 days, or in the fridge for up to 1 month. If it solidifies, you'll simply have to melt it again before serving. Place the jar in a bowl of very hot tap water and let it rest for 15 minutes to help it become pour-able again.
Nutrition information is for roughly 1 heaping tablespoon of magic shell topping. This information is automatically calculated, and is just an estimate, not a guarantee. For a chocolate peanut butter shell, add 2 tablespoons of cacao powder and an additional 1 tablespoon of coconut oil, to help make it pour-able.