Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How to add tomatoes to a guacamole dish?
Once you've mashed the avocado and added your seasonings, add in onions and tomatoes and stir and fold together
<Chop tomatoes and gently fold into mashed avocado.>