Preheat oven to 350.
Spray a 9×13 baking pan with non-stick pan spray.
Drain the pineapple tidbits and save the juice for later in this recipe.
1 20 ounce can pineapple tidbits
Spread the crushed pineapple and the drained tidbits in the bottom of the prepared pan.
1 20 ounce can pineapple tidbits, 1 20 ounce can pineapple, crushed
Sprinkle the cake mix over the pineapple. Do not press or stir.
1 box Cake mix
Sprinkle the reserved pineapple juice over the cake mix to moisten it.
Drizzle the melted butter over the remaining dry parts of the cake mix.
½ Cup (113.5 Gram) Butter
Crumple the brown sugar over the cake before covering with foil.
⅓ Cup (73.33 Gram) Brown Sugar
Cover with foil and bake for 45 minutes. Remove foil and bake an additional 15 minutes or until the top of the cake is golden brown and crunchy.
Remove from the oven and serve with ice cream and/or whipped cream.