Determine the direction of your autobiography. You should begin to formulate the title, as you begin to write the paper. Be careful to not let the concept of the title dictate the flow of the paper; allow the paper to establish the title.
Look at what you have written halfway through the writing. Identify the central points of the writing so far and create the first version of your title based on this. Work off concepts used repeatedly and the mood you want the reader to feel. For example, if your story focuses on cooking with your grandmother, work that into the title by using cooking terminology or a phrase your grandmother repeated.
Reevaluate your original title once you complete the paper. Adjust the title, as necessary, to fit the completed version of the paper. Remove ideas that became less central or add ones that took the forefront. The title should reflect the ultimate message you want your autobiography to send. If, instead of cooking with your grandmother, developing your own cooking style becomes the focus, remove the references to her in your title and stick to cooking terms.
Spend 1 or 2 days away from the paper, if you have the time, and then reread it. Based on this read, decide if your title accurately reflects the essay. If it does not, start from a new viewpoint and create a new title.