Really need to vent im so pissed

I dont believe in cutting off family but no way in hell will my sister in law be trusted around my baby. That s.o.b gave my 6 month old a jelly bean after I have many times told her no sugar I had to take it from him because 1 obviously he is going to choke you stupid. 2 how the freak dare you take that from me I wanted his first sugar to be on his 1st birthday and I wanted to give it to him 3 why the hell do you think your above having to listen to me as his mother. Anyways When I took the jelly bean from him and took my baby back from her and told her "i said no sugar" she had the nerve to say to me "oh he's fine don't be such a helicopter" ill tell you it took literally everything I had to not bitch slap her I kid you not I was seeing all new shades of red. I had to have my hubby talk to her cause I was so pissed I couldn't even speak I took baby home and he delt with her and when he told her that wasn't ok she doesn't get to decide that were his parents she needs to learn to respect that she went and hung up on him gah I have never been so angry. I'm sitting here just stewing. She needs to realize and start respecting us or she's going to not be aloud around him anymore. But as of now she's not aloud alone with him period my hubby and will always need to be in the room. If I let her hold him at all.

Update: I need advise on how to move past this. Obviously she won't be trusted with him alone but we still have to see her on the weekly andi need a way to be able to deal with her. I have a hard time being around people I'm really angry with