Preheat oven to 400º degrees. Boil then mash plantains, let cool. Sift flour, baking powder, cinnamon and granulated sugar together. Add brown sugar. Set aside. Beat egg whites until stiff. Mix in egg yolks, oil and milk. Add to dry ingredients. Lightly mix in mashed plantains and raisins. Do not overmix. Line muffin pan with muffin paper and grease well. Fill muffin pan with batter. Bake for 20-25 minutes.