prepare chocolate cups: -in a microwave-safe bowl, melt the chocolate chips. if needed, you can add a little coconut oil. microwave in 30-second intervals, stirring in between, until fully melted and smooth. -place parchment paper cups (mini cupcake liners or silicone molds also work) on a baking sheet or tray. -spoon the melted chocolate into the bottom of each cup, then use the back of the spoon to spread the chocolate up the sides to create a cup shape. -ensure the sides are thick enough to hold the filling. -place the chocolate cups in the freezer for about 30 minutes to set.

make the peanut butter filling: -in a mixing bowl, combine the runny peanut butter, powdered sugar, and vanilla extract. mix until well combined and smooth.

assemble the peanut butter cups: -take the chocolate cups out of the freezer. scoop a small amount of the peanut butter mixture (about 1-2 teaspoons) and roll it into a ball. -flatten the ball slightly and place it into one of the chocolate cups. repeat this process for all the chocolate cups.

cover with chocolate: -reheat the remaining melted chocolate if needed until smooth and pourable. -pour the melted chocolate over the peanut butter filling in each cup, covering it completely and ensuring the edges are sealed.

freeze and serve: -place the filled peanut butter cups back in the freezer for about 1 hour, or until completely set. -once set, remove the peanut butter cups from the freezer. -peel off the parchment paper cups, if using. -enjoy immediately, or store the peanut butter cups in an airtight container in the freezer or fridge until ready to eat.