lab/husky mix food aggression

Question
QUESTION: I have a 9 mo old lab/husky mix.  I have done a lot of research on the breeds and their traits. Lady is a fantastic dog.  Very sweet, even shy in every new sitution.  The only time she shows any aggression is with her food.  
I'll tell you the things I have done...
1.I make her sit when I put her food in front of her and she cannot eat until I release her.  
2. I give her the food, then pick it up, then give it back so she knows it comes & goes & comes back.  
3. I have fed her out of my hand.  
4. I have fed her sitting on the floor with the food dish between my legs (I know, brave).  
We were consistent with each method for at least a month each time.   For a while she wouldn't eat if someone was in the room.  Now she will stand very aggressive over her dish shaking & growling.  We make sure she is fed at least twice a day.
The real problem is that I have a toddler and with him, Lady will growl and snap at him.  Just the other day, right after eating, my one year old walked over to her and tried to take away a cup lid, it had a little milk in it, she bit him on the hand and almost broke the skin.  She bruised his hand.  That was not even over her food, just something that smelled like food.  I am at a loss.  I cannot leave her down a constant food dish because both the dog & the toddler have free roam in the house and I am afraid of what Lady would do to him if I were not right there supervising.
I do not want to have to make her an outdoor dog or get rid of her but I just can't trust her when it comes to food.
In any other situation she is loving and gentle even with my toddler.  The baby can pull her ears and try to ride her back but he can't go near her food.
Please help!!!

ANSWER: If you can feed her without any signs of aggression, then you have proven that your dog can be trained.  Feeding out of your hand, making her wait - all great things.  One thing I want you try is reaching your hand into her food bowl.  Generally, I recommend giving her a treat while she is eating - something to distract her from her food.  Each time you do that, you bring your hand closer to her dish.  Eventually, you basically stick your hand down in her food bowl to give her the treat.  As she is comfortable with this, you start scooping up the food in her dish, and feeding her by hand.

Once you can do this, you can move on.  First, understand that what you have done is convinced the dog that you are not a threat to her food, and therefore, you are allowed to be there.  Protecting food is a natural and important survival instinct for dogs - it's good and it's natural.  By showing her that you are not a threat, she becomes an even more trusted member of the family.

Notice what you haven't done yet - you haven't shown her that OTHER people aren't a threat to her food.  Instead, she sees your toddler as a potential threat to her food.  It's simple competition.  Now, what you have to do is have EACH member of the family go through the process, slowly, one at a time, and consistently.  Once they can reach in her food and feed her, then move on to the next person.  You also need to make sure that each person tests the dog on a regular basis to help reinforce things.

Until you can do this, my suggestion is simple - put the dog on an organized feeding schedule, and just keep the interaction separate during that time.  If the dog doesn't eat the kibble in 5 minutes, take it up.  The dog will soon learn to eat, finish it, and that's it.  

Hope that helps some, but if I misunderstood that you have made no progress individually with her, let me know.  But right now, I'm assuming that there is little to no food aggression with you.  Let me know if I'm wrong there.

---------- FOLLOW-UP ----------

QUESTION: That does help and I will start to incorporate that into our routine.  
With my husband, myself and my 9 year old son, (we have all worked with her on this) she will stand very aggressive with her snout in her dish, hair raised, and growl.  But I can take the dish away from her.  She just shoves her face in a little deeper to get the last bite before I pick it up.  It is with the smaller people that she will really push the envelope.  My only concern with your suggestion is how do I have the younger kids train her without my supervision.  I ask that because there is a very distinct difference in her behavior when I am there vs when she can't see me.  Like a little kid who knows mom is watching.  
All of the instances of real aggression were when I was not in the room.
We do & have taught my 9 yr old to 'flip her on her back'  to let her know she is not the boss.  We make her look us in the eye and tell her, "I am the boss!"  It feels silly but it has helped her behavior.  I have even flipped her over had the baby stand over her and look him in the eye.
I'm not sure exactly how to handle training her with food around my 1 1/2 yr old and my 4 yr old.
I will continue to use your suggestion and keep working with her.  Thank you for your input.  She is really a fantastic dog, if we could handle this she would be the dream dog everyone wants!  Thank you for your help.

Answer
The ultimate answer to your question is you don't have the younger kids train her without your supervision - at least not yet.  In order to help the dog adjust, you are going to be there.  As the dog gets used to it, it will decrease, but you don't want to allow the possibility of a problem, so you have to supervise.

Also, I don't recommend rolling a dog - it's a very specific canine behavior that can be ineffective at times, and dangerous at others, if used incorrectly.  If you need more help, I would suggest an animal behaviorist or local trainer who might be able to help you with the dog by watching the interactions.