it must be some words back.原来他除了会做蛋糕之外 还会... the speaker is very surpris about the men can do something except cooking cake.may be the men was a cake maker .and the speaker never seen he drive car.and the speaker will say,"原来他除了做蛋糕之还会开车"

He is not just able to make cake. Be attention on "原来"，it means you are little surprised at this fact or it's not as most people thought.

我 蛋糕不会 但是俺会 开车 做家常小菜 保你没吃过 看见就让你流口水

"Turns out that other than knowing how to make/bake cakes, he..."