I haven't tried this with other "milks" I wonder how it would work?
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.