Make cake combine in accordance with package deal instructions. Pour rather less than 1/2 of the batter into the ready dish.
Bake within the preheated oven for quarter-hour. Take away cake from the oven.
Place caramels, milk, and butter in a microwave-safe bowl and cook dinner on excessive, stirring sometimes, till melted and clean, about 10 minutes. Pour melted caramel combination over cake and sprinkle with pecans and chocolate chips. Pour remaining cake batter excessive.
Bake within the preheated oven till the middle of cake bounces again when gently pressed, 20 to 35 minutes.
Ideas
You possibly can soften caramels, butter, and milk in a saucepan over medium-low warmth if you would like.