The shredded zucchini makes this cake really moist. Whenever zucchini is in season, I shred, measure and freeze it in 2 cup amounts for this favorite recipe. I find the topping adds a nice crunch. We actually got an abundance of zucchini by accident one time, we planted what we thought was cucumbers and zucchini grew instead. A mix up at the seed plant, we saw that on the news later. Imagine our surprise, so I had to come up with a lot of zucchini recipes and this one is great. I make it several times a year. Now we plant zucchini on purpose.