Beer Style: Weizen/Weissbier (15A)
Recipe Type: extract
Yield: 5 US gallons
There's an excellent article by Ralph Bucca in the July/August 1994 issue of BarleyCorn that talks about various aspects of brewing with fruit. He provides some general info about handling fruit, when to add, etc., and then provides a couple recipes. One of these is an extract-based Peach Ale that should be trivial to turn into a Peach Wheat recipe. Here's how I'd change Ralph's recipe to make it a peach wheat beer.
Boil malt and hops for 1 hour. Add cold water to fermenter to bring to 5 gallons. Add wort. Pitch ale yeast. On 2nd day of fermentation, skin, de-pit, and chop peaches. Add to fermenter. Three days later, rack to secondary. Bottle 10 days later.
Source: Mark Stevens