In a small saucepan over medium heat, stir together applesauce, maple syrup, light brown sugar, caramel syrup, and butter. Bring the mixture to a boil and let it boil for 1 minute, stirring constantly. Remove from heat and whisk in cinnamon, salt, vanilla extract, and nutmeg until well combined.
1/3 cup applesauce , 1/3 cup maple syrup, 1/4 cup light brown sugar, 1/4 cup ice cream caramel syrup, 4 tbsps butter, 1 tsp ground cinnamon, 1 tsp table salt, 1 tsp vanilla extract, 1/4 tsp ground nutmeg