Preheat your oven to 350F and line a 9x5” loaf pan with parchment paper and butter.
Rub the lemon zest into the sugar until it looks fluffy. Add eggs and whisk for 2 minutes until light and frothy.
Add oil, milk, and extract if using. Whisk until combined.
Sift in the dry ingredients and fold.
Lastly, add the sour cream and lemon juice. Combine until mixed.
Immediately pour the batter into the prepared pan. Run a butter knife through the center to help the loaf crack in the center.
Bake for 40-50 minutes. Check around the 40-minute mark with a toothpick, as baking times can vary.
Let the cake cool for 15 minutes before turning it out of the pan.
Mix the ingredients for the glaze and drizzle it over the cake. Slice and enjoy!