Line a baking sheet with parchment or wax paper. set aside.
In a medium sauce pan combine the peanut butter, butter and brown sugar over medium heat, stirring constantly until everything is melted together and just begins to bubble a little.
Remove from heat and add in the powdered sugar ¼ cup at a time, mixing in each portion completely before adding the next.
Set this mixture aside and allow it to cool to room temperature.
Once cooled, use a cookie scoop or large spoon to scoop out portions of the peanut butter mixture. Roll it into a ball and then place on the baking sheet forming it into an egg shape.
Refrigerate the tray of eggs until they set completely. (Approx. 30 min).
Once the eggs are set, melt the chocolate chips and shortening in the microwave (50% power) in 30sec intervals, mixing between each until the mixture is fully melted.
One by one, lower each egg into the melted chocolate using a fork. Flip it over in order to get the entire egg covered. Allow any excess chocolate to drip off then place it back on the baking sheet.
Sprinkle with decorations or drizzle with any remaining chocolate if you so choose.
Once all the eggs are covered return the tray to the refrigerator in order for the chocolate to set. (Approx 30min)
Store them in an airtight container until ready to serve.