Wash, peel, slice, and chop apples.
In a large skillet, over medium heat, melt 4 Tablespoons of butter. Add chopped apples. Saute until tender and slightly brown.
Add 4 additional Tablespoons butter. Melt with apples. Add 1/3 cup packed brown sugar. Stir continually until brown sugar has dissolved. Add 1/2 teaspoon cinnamon. Stir until incorporated, and sauce has thickened. Set aside. Allow to rest while preparing French Toast.
Slice Brioche Bread into 8, 1 inch thick slices.
In a shallow dish add 3 large eggs, sugar, and cinnamon. Mix until well blended. Stir in vanilla.
Add 1/2 cup heavy whipping cream until well incorporated.
Spray griddle with non-stick cooking spray, or brush with melted butter.
Dip sliced Brioche bread into batter, quickly turning to coat other side. DO NOT ALLOW BREAD TO SOAK in batter. It will fall apart.
Place battered bread slices on hot griddle and cook 2-3 minutes per side or until golden brown.
Reheat sauce. If it has thickened too much, add extra butter to thin it out. Spoon warm caramel apple topping over French Toast. Serve with a scoop of whip cream.