Dry Rub for Cowboy Steaks

We ate dinner last weekend at Jeff and Kathleen's.  They grilled steaks with this delicious rub.
Kathleen says that she always triples the recipe.

1 and ½ teaspoons ancho chili powder

1 ½ teaspoons fine ground espresso coffee (I use instant powder)

½ teaspoon brown sugar

¼ teaspoon dry mustard

¼ t. ground coriander

¼ t. salt

¼ t. freshly ground black pepper

For the 8 of us, I used 3 lbs. of sirloin trimmed of all visible fat.

After putting dry rub on steak, refrigerate.  Set on counter to come to room temperature about 40 minutes before grilling.  Cut steak against the grain before serving.

Sometimes I grill red onions to serve with it.