Preheat your oven to 400F, line a 9x12” pan with aluminum foil, and coat well with non-stick cooking spray. Line the pan with a single layer of soda crackers making sure to cover every inch and set aside.
In a medium pot over medium-high heat, combine the butter, sugar, and salt and bring to a boil. Once boiling, allow the mixture to continue bubbling away for three minutes then remove from the heat and add the vanilla. Carefully pour the mixture over the soda crackers and, using a butter knife or spatula, spread it evenly across the whole pan.
Pop this into the preheated oven for six minutes. The caramel will get nice and bubbly. Remove from the oven, evenly sprinkle with the chocolate chips, and allow them to sit undisturbed for five minutes. Once the chocolate chips are nice and shiny, spread them evenly across the top and allow to cool.
Once the chocolate is completely cool and solid, break up into bars and store in an airtight container.