Banana Pudding Cupcakes

Ingredients (10)

• + 24 vanilla wafers (such as Nilla®) add to pantry
• + 1 (18.25 ounce) package vanilla cake mix (such as Duncan Hines®) add to pantry
• ✓ 1 cup water
• ✓ 3 eggs
• + ⅓ cup vegetable oil add to pantry
• + 1 cup mashed ripe bananas add to pantry
• + 1 ⅔ cups crushed vanilla wafers (such as Nilla®), divided add to pantry
• + 1 cup vanilla pudding add to pantry
• + ½ cup thinly sliced ripe banana add to pantry
• + 1 cup sweetened whipped cream, or more to taste add to pantry