Here's one, but it's not a dunkel. I would substitute some of the wheat with a 1/4 lb of some darker malt.
Franziskaner Hefe-Weisse (from Beer Captured)
4 oz Belgian Aromatic Malt
2 oz Acid Malt
6 lb. 5 oz. Muntons Wheat Dry Malt Extract
2¼ oz. Malto Dextrin
1 oz. American Hallertauer @ 3.5% (bittering hop)
¼ oz. Spalt (flavor hop)
¼ oz. Perle (flavor hop)
White Labs #WLP300 Hefeweizen Ale Yeast
1½ cup Muntons Wheat Dry Malt Extract
OG: 1.052
1) Heat 1/2 gallon water to 155, then add the grains. Steep for 30 minutes.
2) Sparge with 1 gallon 150 degree water, then bring wort to boil
3) Add extract & malto-dextrin, top off to 2 1/2 gallons, bring to boil
4) Add Hallertauer...boil 45 minutes
5) Add Spalt & Perle...boil additional 15 mins
6) Cool and top off to 5.5 gallons
7) Pitch yeast