Save 50% on Espresso Powder

Espresso powder adds a wonderful coffee flavor to baked goods and smoothies. It is usually available only in specialty and gourmet shops. It can cost $10 for less than two ounces.
I found that regular ground coffee is a great substitute. Since canned coffee has not been brewed yet, you only need to use half as much as the recipe calls for. I use my thrift-store coffee grinder to grind it up as finely as possible. This saves a lot of money without giving up the flavor.