Que and Ce Que

As relative pronouns
Que = who, which or that
Ce Que = what

QUE is followed by a subject and a verb in a clause that mdifies a noun

Ex La chemise que tu portes.
L'auto que j'achète

CE QUE is followed by a subject and a verb in a clause that takes the place of the known.

EX.
Regarde CE QUE j'ai acheté (Regarde mon achat)
J'ai aimé ce que j'ai mangé ( J'ai aimé MON DINER)

Change nouns to clauses with either que or ce que.