While this cake is best served warm when the top is still a little moist, there’s a difference between moist and soggy. If the top of your cake is overly gooey, it could be because you used canned pineapple and didn’t blot away the excess syrup first. Too much moisture in the topping can result in a soggy cake. Also, make sure to serve your cake soon after it’s baked since this is when it has the best texture.