Caramel Apple Cookie Sandwiches

INGREDIENTS

green apple peeled, diced into ¼ inch cubes

1 cup

butter, softened

1 cup

sugar

1 cup

brown sugar, packed

large eggs

1 1/2 tsp

vanilla extract

2 1/2 cups

flour

2 1/2 cups

oats, old fashioned or quick cooking

2 tsp

ground cinnamon

1 tsp

baking powder

1 tsp

baking soda {15 Cool Uses for Baking Soda}

1 tsp

salt

1/2 tsp

cloves

1/4 tsp

nutmeg

2 sticks

unsalted butter softened

1/2 cup

light brown sugar, packed

1 tsp

ground cinnamon

4 cups

powdered sugar

1 tsp

vanilla extract

1/4 tsp

salt

1/4 cup

milk or half and half, plus more if needed

salted caramel for drizzling