Lemon mousse cake

So I'm trying to get my mom a lemon la rocca cake but it seems like none of the places serve any. I'm Arlington Texas and am kinda in a time crunch so I won't be able to get it shipped from far away. Please, if anyone knows a good place, tell me. Also if I'm not sure if the specific cake I'm looking for has a better/different name, but pretty much, it's a lemon mousse cake with a layer of lemon curd in the middle. The mousse lays on top of the cake