INGREDIENTS
1
box yellow cake mix
4
medium-size apples (peeled, cored and cubed)
2 tbsp
unsalted butter
3/4 cup
dark brown sugar
1 tsp
cinnamon
1 tbsp
cold water
1 tbsp
cornstarch
1 cup
unsalted butter, room temperature
1 tsp
cinnamon
1/8 tsp
kosher salt
5 cups
powdered sugar
4 tbsp
heavy cream or half-and-half