chilled peach pie cookies

Name: chilled peach pie cookies
Prep time: 30 min
Cook time: 12 min
Total time: 42 min
Cuisine: American
Ingredients: 1 cup butter; 1 cup white sugar; 1 cup brown sugar; 1 tbsp plain greek yogurt (or sour cream); 2 eggs; 1 tbsp vanilla; 3 1/2 cups flour; 1 1/2 cups rolled oats; 1 1/2 tsp salt; 1 tsp cinnamon; 1/4 tsp baking powder; 1/2 cup butter (room temp); 4 cups powdered sugar; 1 tbsp plain greek yogurt; 1 tsp vanilla; 1-2 tsp peach juice; pinch of salt; 2 fresh peaches or 1 can of peaches (thinly sliced); cinnamon