13 graham crackers
1 cup (2 sticks) unsalted butter
1 cup brown sugar
2 cups pecan halves, roughly chopped
1/4 teaspoon salt
1 teaspoon vanilla extract
Step1: Preheat oven to 350°F and line a rimmed sheet pan with aluminum foil.
Step2: Lightly grease the foil with butter and line the baking sheet with graham crackers, breaking them where necessary to make them fit.
Step3: Combine butter, brown sugar, pecans, and salt in a medium saucepan over medium heat. Bring to a boil and let cook 2 minutes, stirring constantly.
Step4: Remove from heat and stir in vanilla. Immediately pour hot mixture over graham crackers and spread mixture to edges of pan using a spatula. Make sure pecans are evenly distributed and that crackers are covered.
Step5: Bake until bubbly, about 10 minutes.
Step6: Allow to cool completely and break into pieces.