- Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan.
- In a medium bowl, mix the melted butter and graham cracker crumbs until well combined. Press the mixture evenly into the bottom of the prepared baking pan.
- Sprinkle the chocolate chips, butterscotch chips, nuts, and coconut over the graham cracker crust in layers.
- Pour the sweetened condensed milk evenly over the top of all the ingredients in the pan.
- Bake in the preheated oven for 25 to 30 minutes, or until the edges are golden brown and the top is set.
- Allow the bars to cool completely in the pan before slicing into squares and serving.
Feel free to customize this recipe by adding or substituting ingredients according to your preferences. Some variations include using different types of chocolate chips, adding dried fruit, or using different types of nuts. Enjoy your delicious Dolly Bars!