In a large bowl, mix together butter and peanut butter until smooth. Add in powdered sugar until fully combined. Fold in the chocolate chips.
Shape the mixture into ovals and place onto a large plate. Freeze for at least 20 minutes. Place chocolate chips into a microwave-safe bowl, and heat in the microwave in 30-second intervals, stirring well until it is fully melted and smooth.
Coat each egg in the chocolate mixture and set onto a plate. Decorate with sprinkles and let sit until it is fully set.
