Preheat oven to 350 degrees and spray a 9x13 glass pan with pam baking spray
Using a medium saucepan, combine the butter and water and bring to a slow boil. Make sure to stir consistently to avoid burning the butter
Remove and allow to cool
Using a large bowl, whisk together the flour, sugar, salt, baking soda, cinnamon, nutmeg, cloves until combined
Using another large bowl, whisk together the sour cream and eggs
Gradually wisk in the butter mixture into the sour cream and eggs until combined
Gradually whisk in the dry ingredients into the wet ingredients until combined
Fold in the apples
Spread the batter evenly into the baking pan
Bake in the oven for 25-35 minutes or until a toothpick comes out clean
Allow to cool on the counter while you make the icing
Using a medium pot, heat up the butter and milk over medium heat until the butter is melted. Whisk to combine
Whisk in the powdered sugar, vanilla, caramel and cinnamon until combined and smooth
Pour over the cake and allow icing to harden before enjoying!