From my post above, "...a mix of Carnation Instant breakfast, Nido, and instant coffee/expresso." The 'coffee' I use is Medaglia D'Oro Caffè Espresso Instant and I premix all three ingredients at home and carry one or two cup servings in baggies on the trail.

During the mixing I sift the stuff with a flour sifter...it reduces the lumping when stirring up the brew on the trail.

FB