Kahlua Brownie Pie

Name: Kahlua Brownie Pie
Cuisine: American
Ingredients: 4 oz chocolate, chopped ((I used 60% cacao)); 4 Tbsp unsalted butter ((½ stick)); ¾ cup sugar; pinch salt; 2 eggs; ½ tsp vanilla extract; ½ tsp chocolate extract ((see note)); ½ cup flour; ⅓ cup water, hot; 2 Tbsp unsweetened cocoa powder ((I used dark cocoa)); 1½ tsp vanilla bean paste ((see note)); 1½ tsp chocolate extract ((see note)); 3 Tbsp Kahlua ((see note)); 1⅓ cup dark chocolate chips ((I used 60% cacao)); 1½ cups heavy (whipping) cream; 1 Tbsp sugar; 1½ cup heavy (whipping) cream; 2 Tbsp powdered sugar; ½ tsp vanilla bean paste ((see note)); 2 tsp Kahlua ((see note)); 1 tsp unsweetened cocoa powder ((I used regular cocoa)); 1 Tbsp unsweetened cocoa powder ((I used dark cocoa))