Preheat the oven to 350°F and line a quarter sheet pan or 9x13 baking dish with parchment paper. Arrange the graham crackers (or saltine crackers) in a single layer, covering the entire surface.
7 sheets graham crackers
In a saucepan, melt butter, brown sugar, granulated sugar, corn syrup, ground cinnamon and salt together over medium heat. Bring to a rolling boil and cook for 2 minutes, stirring constantly.
8 tablespoons unsalted butter, ¼ cup brown sugar, ¼ cup granulated sugar, 1 tablespoon light corn syrup, ½ teaspoon ground cinnamon, ½ teaspoon fine sea salt
Remove from heat and stir in pecans and vanilla extract.
1 cups chopped pecans, 1 teaspoon vanilla extract
Pour the caramel mixture evenly over the graham crackers and spread gently with a spatula.
Bake for 10 minutes, or until the caramel is bubbly.
Let cool completely, then break into pieces.