Common Questions
Can I make this in advance?
Yes. In fact, it is even better the next day. Bake and cool completely, wrap tightly, and glaze the day you serve for the freshest look.
How do I get a strong lemon flavor like Starbucks?
Do not skip the zest. Zest is the main source of lemon aroma. Also, use fresh juice for the glaze and a little in the batter for brightness. If you want it extra bold, add 1/2 teaspoon lemon extract (optional, but effective).
Why did my loaf crack on top?
That is normal for quick breads and loaf cakes. The outside sets first and the center keeps rising, so it splits. The glaze covers it like it was always the plan.
Can I use Greek yogurt instead of sour cream?
Yes. Use full-fat Greek yogurt 1:1. The crumb will be slightly more tangy, still super tender.
My lemon juice and milk look curdled. Did I mess up?
Nope. The acid in the lemon juice can curdle the milk. It is normal here and bakes up just fine.
My loaf is dry. What happened?
Most likely it was baked a little too long or the flour was overmeasured. Spoon flour into the measuring cup and level it off, and start checking at 45 minutes.
How do I make the glaze thick and opaque?
Use powdered sugar + just enough lemon juice to make it pour slowly. If it runs like lemonade, add more powdered sugar. If it is too stiff, add lemon juice a few drops at a time.
Can I use a different pan size?
Yes. An 8.5x4.5-inch loaf pan will be taller and may need a little longer (start checking at 55 minutes). For muffins, bake at 350°F for about 18 to 22 minutes, until a tester comes out with a few moist crumbs.