Preheat the oven to 350°F. Line a cupcake pan with 24 cupcake liners.
Mix the buttermilk and the lemon juice and set aside.
1 cup Buttermilk, ¼ cup Lemon juice
Massage the sugar and lemon zest to release the lemon aroma.
2 cups Sugar, 1 tablespoon Lemon zest, about two lemons
Whisk the flour, baking powder, and salt and set aside.
2½ cup All-purpose flour, 3 teaspoon Baking powder, ½ teaspoon Salt
In a bowl, combine the vegetable oil, eggs, vanilla extract, and lemon extract. Beat at medium speed until the eggs and oil are well incorporated and the batter is lighter in colour, about 2 minutes.
½ cup Oil, 3 Eggs, 1 teaspoon Lemon extract, 1 tablespoon Vanilla extract
Add the sour cream and beat until combined.
½ cup Sour cream
Using a spatula, alternate adding half the dry ingredients followed by half of the liquid ingredients (buttermilk and lemon juice) and mix just until the flour starts to incorporate. Scrape down the sides of the bowl and stir the batter from the bottom to the top to ensure it’s well mixed.
Mix in the poppy seeds.
2 teaspoon Poppy seeds
Using a large cookie scoop, divide the batter evenly, filling each liner ⅔ full. Bake at 350°F for 15-17 minutes. If the toothpick comes out clean, the cupcakes are done. Cool completely before frosting.
This is totally optional, but before frosting the cupcakes, make a small cavity inside them, and fill it with some Lemon Curd.