Coby my #2 bub is 15 months and I want to stop breast feeding him. Never would he have a dummy nor a bottle, he drinks formula when he feels like it from a sippy cup when offered 3 times a day. And I'm still breastfeeding him at 5pm and then from say 11pm till 7am whenever he wants it or to keep him quiet so as not to wake hubby and his older brother.

He co sleeps with me every night from when he first wakes at approx 11pm. He has had no breast feeds during the day for the past 3 months or so. He is so stubborn!
If holding him no matter what time of the day he has his hands down my top.
my first child self weened at 10 months!!! Which i was sad about

Is there anything I can take/eat that's safe for us both that will make my milk taste terrible?
Hubby and I are desperate for a good night sleep.
Need him out of our bed, happy to keep the 5pm feed, but don't think he'll get the message if I continue it? Cold turkey?
I should also mention he self settles him self to sleep for his day sleep and when I put him down at night both times in his cot.
He and his older brother share a room.