Gas One GS-3000 is a single burner that will cook camping meals for 1-2 persons faster than you think. Compact design and body that includes butane canister is easy to transport and carry around.
This one is our favourite high output single burner camping stove which is not very expensive too. It is extremely light weight and you should definitely buy this if you are a beginner and want to start with the bare minimum.
Even if you add a double burner stove later in your camping gear, this one will always be useful.
Read more about Gas One GS-3000 in this detailed post.