Line your mini muffin tin with paper or silicone cups to prepare for shaping the treats.
Gently melt the chocolate in a double boiler or heatproof bowl over simmering water, stirring frequently until it’s smooth and shiny. The chocolate should feel warm but not hot to the touch.
Using a small spoon or a piping bag, spoon a generous dollop of melted chocolate into each cup, tilting the tin slightly to coat the sides evenly. Chill the filled cups in the fridge for about 5 minutes until the chocolate sets slightly.
While the chocolate is chilling, stir the peanut butter with honey or powdered sugar until smooth and creamy. This makes it easier to scoop and helps it hold shape.
Remove the muffin tin from the fridge and spoon or pipe about a teaspoon of peanut butter into the center of each chocolate shell, pressing slightly to avoid overflowing.
Cover the peanut butter with more melted chocolate, smoothing the tops with a spatula or the back of a spoon. Be generous to ensure the filling is fully enclosed.
Sprinkle a tiny pinch of sea salt on top of each cup for added flavor, if desired. Place the tin back in the fridge for at least 30 minutes until the chocolate is fully set and shiny.
Once set, remove the peanut butter cups from the fridge and let them sit at room temperature for about 10 minutes before serving. Enjoy the imperfect, sticky, and deeply satisfying homemade treats!