Making a coffe jelly

I have no idea how to make an coffee jelly. I saw a black gulaman in the kitchen and I think of what I can do with this black gulaman I start researching what I can do in this black gulaman, and I found this "coffee jelly" so I see the ingredients so I buy does ingredients immediately after I bought the ingredients, I start doing the coffee jelly first you have to cook the black gulaman while cooking it pour the sugar and the coffee on the gulaman and after that off the fire until the gulaman get firm, and after that mix the condense milk,evaporated milk,and nestle cream, After that check your gulman if it's firm and the cut it into cubes, mix it with you mixture with milk and freeze it. And you have a coffee jelly.