Preheat oven to 350°F and line a baking sheet with foil.
Unfold out crackers evenly on baking sheet. Put aside.
In a medium saucepan over medium warmth, mix butter and brown sugar. Convey combination to a boil, stirring continuously, and let boil 2 minutes.
Take away from warmth and stir within the 2 teaspoons cinnamon and vanilla. Pour over crackers, and utilizing a rubber spatula, stir till evenly coated.
Bake till combination is bubbly, about 10 minutes.
Whereas crackers bake, stir collectively the granulated sugar, remaining 1 teaspoon cinnamon, and salt. Put aside.
Once you take away crackers from the oven, sprinkle with cinnamon sugar combination, then put aside crackers to chill. As soon as cool, break into items, serve, and get pleasure from!