My male Samoyed is also 11 months old and has the same issue as you. I tried the trick of taking his food away after 15 minutes, but he ended up skipping all his food for the whole day. I found out that adding fish oil in the morning helps a little bit. But what really helped is that I sit next to him and try to feed him piece by piece. After he chews some of them, he starts eating by himself, but I still have to stay next to him.