Mati Untuk Bar Ooey Gooey S'mores

Bahan-bahan (12 porsi)

• 9 lembaran biskuit graham
• 1 cup + 2 tablespoons all-purpose flour
• ½ teaspoon garam
• 1 cup mentega lunak
• ⅔ cup gula merah
• 1 teaspoon ekstrak vanila
• 3 ½ Hershey's chocolate bars
• 3 ½ ounces marshmallow fluff, (½ of a jar)