This is the best recipe for lemon poppy seed muffins you have been looking for. Citrusy, moist, with a delicate crumb, I can almost smell them in the oven as I type. Trust me when I say you wont need another recipe, breakfast is served!
Preheat the oven to 375º and line a muffin tin with muffin liners.
Add the sugar and lemon zest to a large bowl. With your fingers, massage the zest into the sugar to release the oils which will give the muffins a brighter lemony flavor.
To the bowl, crack in both eggs and pour in the vanilla extract. Whisk to incorporate.
Pour in the oil and milk, then whisk.
To the wet ingredients, add in the dry and poppy seeds.
Using a spatula, fold in the flour and poppy seed until just combined. Let rest on the counter for 25 minutes.
Distribute the muffin batter using every other well of the muffin tin to allow room for the muffins to rise. Place in the oven at 375º for 25 minutes, rotating the racks halfway.
Notes
Switch from the whisk when mixing the batter to a spatula as you fold in the flour, this yields an airy texture and less chewy, as a whisk is intended to whisk volume to the eggs, and over-whisking or mixing can cause the batter to get gummy.
Let the batter sit on the counter for an extended period of time. When the batter rests, it gives the leavening agents (baking soda, baking powder) to marry and build up so that when the muffins bake, it'll help the texture, mouthfeel, and rise.
Leave room in between the muffins in the muffin tin itself. That might mean using more than one muffin tin to bake with. This gives the muffins some room to rise up higher and fluffier when they bake.
USE A SCALE! I highly recommend investing in a good quality kitchen scale. Measuring in grams versus a regular measuring cup yields such different and varying results when you bake. Baking is science, so using a scale will give accurate measurements every single time.