01 - Line a standard 12-cup muffin tin with paper liners and set aside.
02 - Combine chocolate and coconut oil in a heatproof bowl. Melt gently over a double boiler or in 30-second microwave bursts, stirring until completely smooth.
03 - Spoon approximately 1 teaspoon of melted chocolate into each liner. Tilt the tin gently to coat the bottom evenly. Place in the freezer for 10 minutes until set.
04 - While chocolate chills, mix peanut butter, powdered sugar, softened butter, vanilla extract, and salt in a bowl until smooth and thick.
05 - Roll the peanut butter mixture into 12 small discs. Place one disc on top of each chocolate layer, pressing gently to flatten slightly.
06 - Spoon the remaining melted chocolate evenly over the peanut butter discs, ensuring they are completely covered.
07 - Tap the tin gently on the counter to level the tops. Refrigerate for 30 minutes or until fully set.
08 - Peel off paper liners and serve chilled or at room temperature.