The best way for the person to describe the ingredients would be to provide a clear and structured list that includes both essential and optional ingredients, along with suggestions for toppings. Here’s a concise way to describe it:
"Begin by gathering your ingredients. You will need oats, milk, and yogurt as the base. For added flavor, you can include optional ingredients such as vanilla and honey. Finally, choose your favorite toppings—berries like strawberries and nuts like almonds work great, but feel free to get creative with any fruits or toppings you enjoy."
This description organizes the ingredients well and makes it easy for the listener to follow.