[He can't help it. He holds his middle and snorts, and then laughs.] Pfffhfhfh... ...I guess so, yeah..!

...Oh- I think it's the icing though! [He points at the house.] See how it holds everything together? The icing also looks like snow...undyed icing is going to be white, or close to it. It's not going to be any color that you'd naturally see on rooftops, or the ground, any other time of year.

So if you're going to recreate a gingerbread house... ...it has to be in winter.