Lemon Lush
1/2 cup butter
1/2 cup chopped pecans
8 ounces cream cheese
1 cup powdered sugar
1 (8 ounce) container whipped topping, divided
1 (3 ounce) box lemon pudding mix
1/2 cup sugar
2 1/4 cups water, divided
2 egg yolks
Mix together cream cheese, powdered sugar and 1 cup whipped topping and spread over first layer