In a large bowl, combine cake mix, pumpkin puree, egg, oil, and pumpkin pie spice. Beat with a handheld electric mixer on high until well mixed.
Bake for 25-30 minutes, or until the cake is set in the center. Remove from the oven and poke holes throughout the cake about one inch apart from each other. Then pour sweetened condensed milk over the cake, letting it seep down into the holes.
Let cool.
For frosting:
Combine butter and cream cheese and mix well.
Add vanilla extract and the salt.
Add powdered sugar.
In a separate bow mix the heavy whipping cream until stiff peaks begin to form.
stir the cream cheese mixture together with the heavy whipping cream.
Spread Frosting over cake. Then Drizzle with caramel sauce.
