I had a pint of Smithwicks the other day for the first time, and thought I would take a stab at brewing a reasonable facsimile. I found this recipe at the Powers Homebrew Website. It looks okay to me, but I'm unfamiliar with the style. It also does not indicate IBUs.
Irish Red Ale
5 Gallon Recipe (OG 1.056)
77% System Efficiency
28 Carbohydrates/16oz
250 Calories/16oz
5.4% ABV
10 pounds British two-row pale Malt
.25 pounds British Roasted Barley
.5 pounds Melanoidin Malt
1 ounce Kent Goldings Hops (30 min)
1 teaspoon Irish Moss (10 min)
1 vial White Labs Irish Ale Yeast
Mash Schedule
153 degrees for 60 minutes
168 degrees for 10 minutes