Lemon Cake Mix Cookie Sandwiches

This is a super soft lemony cookie with lemon frosting, I love these and they are so easy!  
These are very similar to the Oreo Cookie Recipe I posted about. 

1 box Lemon cake mix
1/2 c. oil
2 eggs
1 can lemon frosting
(optional)
1 cup sugar
1 packet lemonade koolaid

Mix first 3 ingredients together, roll into 1 in. balls, mix sugar with lemonaid mix and roll balls in sugar, bake 350 for 7 min. or till done. Frost cookies and make into sandwich.