Caramel- Pecan Cheesecake Bars

Ingredients

• 1 12 cups crushed vanilla wafers (about 50 wafers)
• 4 tablespoons (12 stick) salted butter, melted
• Four 8–ounce packages cream cheese, softened
• 1 cup granulated white sugar
• 1 cup sour cream
• 3 tablespoons All-Purpose Flour
• 1 tablespoon vanilla extract
• 4 large eggs
• 24 individually wrapped caramels, unwrapped
• 1 tablespoon water
• Three 1–ounce squares semi-sweet baking chocolate, chopped
• 12 cup chopped pecans