I decided to add to the must this evening, here's what I added:
1.6 kg Honey (3 1/2 lb)
I decided there were already enough spices in the must already so I only added this plus water to the top making it a six gallon batch now.
So far there hasn't been any major foaming so I'm hoping it won't start now, that's why I added so much water right away.
I looked it up cinnamon on wikipedia and found out that I am using Cassia
Here you can see my Cassia sticks at the bottom along with other crap - probably yeast and spices
And here you can see the carboy after I filled it up - looks nice
We'll see how it goes