Add peanut butter to a ziploc or piping bag, and fill each raspberry with peanut butter.
Dip each raspberry in a bowl of yogurt until each one is fully covered.
Place the yogurt-covered raspberry on a parchment paper lined plate and place in the freezer for about 30 minutes, until the yogurt hardens.
Melt the chocolate chips in a microwave-safe bowl. Dip each berry in the chocolate until it's covered and place it back on the plate.
Wait for the chocolate to harden and enjoy!
Notes
You can also substitute the raspberries for any type of berry: strawberries, blueberries, and blackberries, though you may need to drizzle with peanut butter instead of fill.