For each cup of mix add: 1/2 cup milk or buttermilk, 1 egg, and 2 tbs of melted butter
Start by adding the butter to the skillet and melting it over low heat.
Add the milk and egg to the pancake mix in a mixing bowl and stir until combined. Once the egg is stirred in, pour in the melted butter and stir until everything is incorporated.
This recipe makes thick and fluffy pancakes, for thinner pancakes add a tablespoon or two of milk.
Use a 1/3 cup measure to scoop pancakes onto the skillet. Continue cooking on medium heat until bubbles start to form on the top and the edges are set. Flip the pancakes and cook until golden brown and set.
Finish cooking the pancakes until the batter is gone. I like to add about a tablespoon of butter to the skillet between batches.