In a large bowl combine your sugar, eggs, oil, yogurt, lemon juice and zest, vanilla, and buttermilk. Mix until combined.
In the same bowl add your flour, baking powder, baking soda, and salt. Mix until combined.
Fold in your poppy seeds.
Let your batter rest in the fridge overnight to get super high rise muffin tops.
Pre-heat your oven to 425 degrees F.
Fill your muffin liners to the top!
Place muffins in the top ⅔ of your oven. Bake muffins for 10 minutes. Then without opening the door, lower the temperature of your oven to 350 degrees F. Bake your muffins for another 8-10 minutes or until the center of your muffins come out dry.
Let muffins cool.