My friends and family from my house happily baked their cookies in my kitchen.
Well, do you want me to diagram it for you? It has a compound subject and you will have to decide whether or not "from my house" modifies only "family" or also "friends".
The prepositional phrase "in my kitchen" answers "where" about baked and should be placed under it.
Now, if you know nothing of Reed-Kellogg diagramming, you should go to the site
and study up a little.