While we were camping, we used the Toddy cold brew system to make coffee syrup.
Our friend at Gussied Up got us all started on this way of making coffee. I'll show you how it's done when I brew up a batch tomorrow. Basically it is a thick dark coffee; you add water to get it to your desired strength. I think it is best iced, which is a good thing because nobody was prepared to deal with the camp stove to heat the water when we woke up.
H&M brought the coffee syrup, Sheeder Cloverleaf Dairy Milk, and a choice of caramel or hazelnut syrup. You can see from the picture I drank mine iced with very little milk.