Banana Pudding Cheesecake

Name: Banana Pudding Cheesecake
Prep time: 40 min
Cook time: 1 h 20 min
Total time: 2 h
Cuisine: American
Ingredients: 3 cups whole Nilla wafers (crushed (180 grams; 1 ⅔ cups crushed)); ¼ cup granulated sugar ((50 grams)); 5 tablespoons unsalted butter (melted and slightly cooled (70 grams)); 32 ounces brick-style cream cheese (softened to room temperature (4 blocks; 905 grams)); 1 cup mashed ripe banana ((2 large ripe fresh bananas; 250 grams)); ½ cup full-fat sour cream (room temperature (115 grams)); 1 cup granulated sugar ((200 grams)); 1 (3.4 oz) box dry instant banana cream pudding mix ((NOT cook & serve)); 1 teaspoon pure vanilla extract; 4 large eggs (at room temperature); 2 cups whipped cream or whipped topping; 1 to 2 bananas (sliced); 10 to 20 Nilla wafers