How do you set up a 2 paragraph essay

A two paragraph essay is very short. You will need to be conscise.
Use the first sentence to introduce your subject. Put your conclusion right in the last sentence.
In between, give your evidence or arguments, leading towards your conclusion.

Boy a two paragraph essay that's a tuff one. :p Though I would suggest just trying to write it as if you were to write any other essay. In other words saying to start with a great introduction including a thesis statement, and topic sentences. Also not to forget transition words to get you through along with the essay in a orderly precise mannerly way. Mentioning your statement and proven to be true facts.
Also as I was taught, ALWAYS include "ICE"
(Introduce , cite and explain)! Than with wrapping up your conclusion within the second paragraph.

Also btw don't forget a paragraph can be as many sentences as you want it to be as long as it's more than 5 sentences :p

Hope this helped