Your coworker brought muffins to work today to share. They look great. You're amazed that she made them herself.
You made these from scratch?
Doing something "from scratch" means that you do it from the very beginning, without having some parts of it done for you.
For example, baking cookies "from scratch" means combining flour, eggs, sugar, etc. to make the cookies (instead of buying pre-made cookies or frozen cookie dough). A lot of people believe that food that's made "from scratch" tastes better.
If you're writing something and lose your work, "starting over from scratch" would mean re-writing it completely.
(Print this lesson)