Curry Chicken Salad

½ c. mayo
½ c. plain yogurt
¾ tsp curry powder
¼ tsp salt
3 c. diced cooked chicken
1 ½ c. sliced red seedless grapes
1/3 c. sliced green onion
2 Granny Smith apples, chopped

Mix sauce together; mix into other ingredients. Chill at least one hour before serving.