Preheat oven to 350 degrees. Grease a 12-cup muffin tin.
In a medium bowl, combine flour, baking powder and salt. Set aside.
In a larger mixing bowl, rub the sugar and zest together until combined and fragrant. Add the buttermilk, eggs, extract and olive oil and whisk together.
Add the dry ingredients and combine.
Scoop batter into muffin tins and bake for 20-25 minutes. When the tops of the muffins are golden brown, they are done.