60/40 pale/wheat. Bitter to around 20 ibus. Throw some flavor hops in around ten or fifteen minutes. I like simcoe and amarillo, or magnum for bittering and amarillo or cascade for flavor(not too much, though). I use us05 or white labs american wheat usually. Shoot for sg around 1.045-1.050. I play around with the hops, and it always turns out good.
Oops. Didn't read the extract part. Use wheat extract. Its usually 50/50 I think