Place muffin liners (cupcake liners) in a muffin/cupcake baking pan.
Separate the egg yolks and whites.
Whip the egg whites until you form stiff peaks.
Meanwhile, in a separate bowl, whisk together the yolks, honey, oil, vanilla, and lemon juice.
Whisk all the dry ingredients into the batter.
Fold the egg whites into the batter and blend well.
Add the poppy seeds and lemon zest to the batter and blend well.
Fill each muffin liner about 2/3 of the way with batter and bake for about 25 minutes, or until a toothpick placed in the center of a muffin comes out clean.
Store in a sealed container for a few days or in the refrigerator for a few weeks.