This is the 2471st most frequent Japanese word.
作ろ
The word "作ろ" is not a standalone word but can be a conjugated form of the verb "作る" (to make or create), specifically in the volitional form, meaning "let's make" or "shall (we) make."
Here, 作ろう is the volitional form of 作る, meaning 'to make'. It expresses the speaker's intention or willingness to perform the action of making.
私は新しい机を作ろうとしています。
I am trying to make a new desk.
The form 作ろう again denotes the intention behind making something—the cakes in this case, referring to the shop's attempt to create something desirable.
このお店では美味しいケーキを作ろうとしています。
They are trying to make delicious cakes at this shop.
Here, 作ろう adds the nuance of collaborative or inclusive effort, symbolizing the collective intent to establish something positive.