I haven't tried this one, but it sounds great.
* 1/4 cup soy milk
* 1/2 cup canola oil (also try 1/4 cup to cut fat)
* 1 Tablespoon maple syrup (I use splenda)
* 1/2 teaspoon real vanilla extract (if you use vanilla soy milk, you an omit this)
Place soymilk and 1/4 cup vegetable oil in blender. Blend at highest speed and slowly drizzle in remaining 1/4 cup vegetable oil. Blend in maple syrup and vanilla, add a little more oil if necessary to thicken. This makes enough topping for one pie, or crisp, or angel food cake, or, well you get the picture.