Experimental Brownies

I have a good recipe for moist, fudgy brownies.  But I have been trying to find a more healthy recipe for brownies using whole wheat flour.  Every time I have tried one they come out crumbly and dry.  So I doubled my recipe minus one egg and used half white/half wheat flour this time.  They still came out crumbly but more fudgy than other attempts.  I have a few other tricks I'm going to try, but it is getting better.

1/2 cup butter, melted
1/2 cup oil
1 1/2 cups sucanat, powdered
3 eggs
2 tbsp vanilla extract
2/3 cup unsweetened cocoa powder
1/2 cup all-purpose flour
1/2 cup wheat pastry flour
1/2 teaspoon salt
1/2 teaspoon baking powder

Preheat oven to 350 deg.  Grease bottom of 9"x13" baking pan.

Mix butter, oil and sucanat in a mixing bowl.  Add eggs and vanilla and mix throughly.  Add remaining ingredients and mix for two minutes on high.

Bake for 20 minutes or until toothpick inserted in center comes out clean.