Preheat oven to 400 degrees Fahrenheit.
Sift together the flour, sugar, baking powder and salt.
In a seperate bowl whisk the oil, soy milk, yogurt and vanilla.
Add lemon zest (lots of it) to wet ingredients.
Fold wet mixture into dry.
Fold in poppy seeds.
Taste it at this point, if it isn't sweet enough you can add more lemon zest/juice or vanilla extract.
Grease a 12 cup muffin tin, fill each cup with the mixture.
Bake for 20-25 minutes.
Once the muffins were cool, I drizzled some lemon flavored glaze on the top of them as they were a bit dry, this finished them off nicely!
For the glaze just mix the lemon juice and confectioners sugar and pour over the muffins.