Chocolate-caramel-pecan cheesecake bliss

Ingredients

• 2 cups chocolate wafer crumbs (38 wafers)
• 1/4 cup sugar
• 1/3 cup butter, melted
• 3 (8-ounce) packages cream cheese, softened
• 1-1/4 cups sugar
• 4 large eggs
• 1 (8-ounce) container sour cream
• 1 tablespoon vanilla extract
• 1/4 cup butter
• 1 cup (6-ounce package) semisweet chocolate morsels
• 1 (12-ounce) jar caramel topping
• 1 cup chopped pecans