Kahlua Coffee Cheesecake with a chocolate brownie crust

Ingredients

• 1 package Ghirardelli brownie mix
• 2 large eggs
• ⅓ cup vegetable oil
• ⅓ cup Kahlua
• 1 tbsp espresso powder ((or instant coffee))
• 2 (8 oz) cream cheese packages
• ½ cup granulated sugar
• 2 tbsp all-purpose flour
• ⅓ cup sour cream
• 3 tbsp Kahlua
• 1 tsp vanilla extract
• 1 cup heavy whipping cream ((or half and half))
• 1 cup dark chocolate chips ((or semi-sweet))
• Pam cooking spay