Beer Style: Fruit Beer (20A)
Recipe Type: extract
Yield: 5 US gallons
I'd second this opinion. I made a cranberry ale with 1.2 kg (2x600 g) frozen cranberries that turned out well IMHO. Nice subtle cranberry flavor/tartness. The ingredients were (if memory serves since the brewbook isn't handy).
Standard 1hr boil with 3 gal wort, cool in ice water, pour into 2.5 gal boiled, cooled water. Add yeast starter, rack after 7 days, bottle after 14 days with 3/4 cup corn sugar.
Source: Neil Dryden