In a medium bowl, beat together cream cheese, olives, mayonnaise and onion powder until totally combined.
Scoop mixture into a log or ball shape -- I like to place it on a piece of plastic wrap to make it easier and less messy and mold it into the desired shape. Cover and place in refrigerator for about 45 minutes to an hour.
On a plate or shallow dish, mix together walnuts and chives. When the mixture has chilled and firmed up, roll it in the walnut and chives until it’s well coated. Keep chilled until ready to serve.
Serve with crackers, pita chips or fresh veggies.