Will my dog ever learn?

We have two dogs, a Dachshund called "Blidge" and a Yorkshire Terrier called "Millie". Millie is my dog and Blidge is my moms dog. All Millie wants to do is eat, whereas Blidge always wants to play.

The other day we had chips for our dinner and there were a few left over, so as always I made my way into the dogs room.

One by one I fed millie some.

But every time I feed her she always eats to quick and it make me frustrated as there is no need to.

It frustrates me because she starts making funny noises as if theres one stuck in her throat.

Sometimes she scares me because I feel like she's choking.
I don't know why she does it... She never learns.