Prepare the Chocolate Layer

1. Melt the Chocolate: In a microwave-safe bowl, melt the chocolate chips with coconut oil in 20-second intervals, stirring in between, until smooth and fully melted.
2. Add a Layer of Chocolate: Spoon a small amount of melted chocolate into the bottom of each muffin liner. Swirl it around to cover the bottom evenly. Place the muffin pan in the fridge for about 10 minutes to set.

Prepare the Peanut Butter Filling

1. Mix the Filling: In a separate bowl, combine the peanut butter, powdered sugar, vanilla extract, and a pinch of salt. Stir until smooth and creamy.
2. Add Peanut Butter Filling: Once the chocolate layer has set, spoon a dollop of the peanut butter mixture on top of each chocolate base. Gently press down to flatten it out, ensuring it’s an even layer.

Top with Chocolate

1. Add the Final Chocolate Layer: Spoon the remaining melted chocolate over the peanut butter filling, covering it completely. Tap the pan gently on the counter to smooth the top.
2. Chill: Place the muffin pan back in the fridge for at least 30 minutes to allow the cups to firm up.