LOL I don't really have one. Pho is like on one of those foods where there's a zillion and one ways to make it. I'd suggest just watching some youtube videos on Pho recipes to get the school of the big idea. Some tips I would give you. Don't by pass parboiling the meat and stock bones step. You want a clear broth. You can buy the Pho seasonings at your Asian market. They come is a plastic packet with a spice bag. You pan roast the spices, pour them in the bag, tie the bag and toss it into the stock. There are many quick cook Pho recipes. Don't use them. You want to simmer the stock for at least 6 hours.
When I make the stock I use beef soup bones, about 2 lbs of oxtail and about 2 lbs of chuck roast. I remove the chuck roast after a couple of hours, immerse it in cold water to stop the cooking then slice it into thin slices. I add the thin slices of cooked beef and a few ox tails when building the bowl of soup. If you have a significant fat layer after cooking you want to remove most of it.
So making the stock is the most important part. The rest you can play with. Like I said, watch some Youtube videos as this is a recipe that's hard to write down.
It is heavenly delicious though and well worth the effort. And like most soups....even Asian meal in a bowl noodle soups, it goes great with a sandwich. Preferably a Banh Mi.