I have made this many times, no need to panic on it.
The only thing I had a problem was, I didn't use domimons sugar one year I used the store brand and it didn't set.
Put your butter, sugar, fluff and ev. milk in the pot, stir it up and keep stirring it making sure all is melting, then keep stirring it till it starts to boil. It will bubble lettting air out.
After it starts to boil - still stirring - It will get a few dark coloring in it here and there, after 5min remove and add nuts chips and vanilla and stir until it is all blended in and pour into butter pan. and let set
Remembering this stuff is very hot. Children and pets should not be in the area.
I have never Had it go grainy
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