The night before, put the poppy seeds in a small container and pour in the soymilk. Loosely cover and refrigerate.
The next day, when you want to make the muffins, put maple syrup, lemon juice, cornstarch mixture, poppy seed/soymilk mixture and melted earth balance in a big bowl and stir.
Stir together all the remaining ingredients and dump the dry stuff into the wet stuff. Stir this very quickly. It will look lumpy, but that's fine---don't over mix.
Fill greased muffin tins 3/4 full with the batter and sprinkle sugar on top.
Bake at 375 degrees for 15 to 20 minutes.
I adapted this recipe from herbgal's Wonderful White Cake recipe. You should try that one, too.