Caramel Pecan Cheesecake Bars

Bahan-bahan (24 porsi)

• 1½ cups crushed vanilla wafers ((about 50 wafers))
• ¼ cup (½ stick) salted butter, (melted)
• Four 8-ounce packages cream cheese, (at room temperature)
• 1 cup granulated white sugar
• 1 cup sour cream
• 3 tablespoons all purpose flour
• 1 tablespoon vanilla extract
• 4 large eggs
• 24 soft caramels, (unwrapped)
• 1 tablespoon water
• Three 1-ounce squares semi-sweet baking chocolate, (chopped)
• ½ cup chopped pecans