Preheat your oven to 350 degrees

Line a baking sheet with parchment paper

Place the ritz crackers on the lined sheet and spread them out into rows

In a sauce pan, bring the butter and brown sugar to a boil

Boil, stirring constantly, for 2 - 3 minutes, until thickened

Pour the toffee mixture over the ritz crackers and spread out evenly with a rubber spoon or spatula

Bake at 350 degrees for 3 - 5 minutes, until the edges start to brown and bubble

Remove the toffee from oven and sprinkle immediately with the chocolate chips over the top

Allow chocolate chips to set and melt for around 5 minutes, then use the back of a spoon or spatula to spread the chocolate out evenly

Place the ritz cracker toffee in the fridge or freezer for 1 - 2 hours, until set

Once hardened, use your hands to break the toffee into pieces

Store leftover ritz toffee in an airtight ziploc bag in the freezer