I always let Olivia push the oven button, it makes her feel so grown up. Preheat your oven to 350°F (175°C) and lightly grease your baking pan.
In a large bowl, gently stir together the [angel food cake mix] and the entire can of [crushed pineapple in juice]. Olivia loves watching how the batter magically changes texture, no eggs, no oil, just pineapple magic.
Spread the batter evenly into the pan and bake for 25–30 minutes, until golden and springy. This is when our kitchen starts smelling like sweet sunshine.
Let the cake cool fully before topping. This is the hardest part for my little helper, waiting!
Stir together [instant pudding mix] and [crushed pineapple] until thick. Gently fold in the [whipped topping].
Spread topping over the cooled cake and refrigerate for at least 2 hours. The flavors deepen beautifully while it chills.