J.S.
Hi A.~
My daughter was the same way--loved the taste of her brother's milk at around 10 months also. Because of the risk of allergies, I went ahead and gave her Rice Dream Rice Milk instead. At that point, she started self-weaning from breastfeeding, so I figured she'd be ok to start drinking a minimal amount of this. I still pumped & gave it to her in a sippy cup though to make sure she got everything she needed.
I know most peds say to wait until 12 months, but go with your gut, that's the only thing you can always trust!!
J.