In a microwave safe bowl melt the butter. Stir in the cocoa and sugar. Add eggs. Add salt. Add flour to combine and pour into 9x13 pan lined with nonstick foil. Set aside.
cheesecake
Electric mix the cream cheese and sugar. Add sour cream. Add eggs one at a time and pour over the brownie layer. Use an offset spatula to carefully spread it. Bake at 350 for 30 minutes and then cool. Move on to the topping.
Drizzle caramel all over the cheesecake brownies. Sprinkle on chips and pecans. Chill for a few hours and cut into squares.