Yes, this may also be helpful:
Yes, do the evocation method I described, and use the marker pen to draw his sigil and use the candles during the evocation.
You could write the sigil out the night before if you have a private place like your bedroom, place the chocolates ON the sigil, and leave that overnight as an offering to him.
Leave them out overnight, or ideally, 3 days if it is safe ( if there is no possibility that children or pet animals may find them).
Afterwards, in the morning wrap them in a piece of clean white paper and place them in the household trash, he will have enjoyed the energy of the offerings and also the consideration and care spent choosing them, and the sacrifice of not taking them for yourself. 
And please do an intro, as @DarkestKnight has asked above, it’s a very important rule on here. 