milk. Keep warm. Combine cake mix, melted butter and remaining 1/3 c. Evaporated milk. Beat at medium speed 2 minutes. Spread 1/2 of batter in 9 x 13 pan. Bake 350 for 6 minutes. Remove from oven. Cool 2 minutes. Spread caramel mixture over baked layer. Sprinkle with chocolate chips. In remaining batter stir in nuts. Drop by spoonfuls over all. Bake at 350 for 18 minutes.