First, position your dolly and take her nice clothes off because if you don't, if she's anything like you, she'll end up looking grubby after her meal.
Aim as close as you can for her mouth. If you can't put the food in her mouth, any other facial orifice will do.
If the food doesn't fit in your dolly's mouth (or the alternative orifice), trim it down to a suitable size by biting bits off.
Hmmm, actually, this tastes very nice. Yum.
Give your dolly a cuddle for watching you patiently while you ate her food.
Continue eating your dolly's food until you're satisfied, making sure to cuddle her at the same time.
Don't forget to drink your milk!