Add the powdered sugar to a small bowl.
Start with 2 tablespoons lemon juice and whisk until smooth.
If the glaze is too thick, add more lemon juice a teaspoon at a time.
Stir in the lemon zest.
The glaze should be thick enough to cling to the donut and create an opaque coating.
Glaze the Donuts
Once the donuts are completely cool, either spoon the glaze over the tops or dip each donut directly into the bowl.
Lift and let excess glaze drip back into the bowl.
Return the donuts to the wire rack.
Sprinkle immediately with extra lemon zest before the glaze sets.
If desired, garnish with very thin lemon slices shortly before serving.
The Secret to Soft Baked Donuts
Baked donuts can become dry when they are overmixed or overbaked.
The batter should be mixed just until combined, and the donuts should come out as soon as they spring back lightly.
Because they are baked in shallow molds, even a few extra minutes can make a noticeable difference.
The milk, egg, and melted butter help keep the crumb tender, but careful baking time is still the most important factor.
The Secret to a Smooth Lemon Glaze
Powdered sugar absorbs liquid quickly, so add the lemon juice gradually.
Too much juice will make the glaze thin and transparent.
If that happens, whisk in a little more powdered sugar.
For a thicker, more bakery-style coating, dip the donuts once, let the glaze set for several minutes, then dip them a second time.
Delicious Variations
Lemon Blueberry Donuts
Fold a small handful of fresh or dried blueberries into the batter.
Lemon Poppy Seed Donuts
Add 1 tablespoon poppy seeds to the dry ingredients.
Lemon Raspberry
Top the glazed donuts with crushed freeze-dried raspberries.
Lemon Coconut
Sprinkle toasted shredded coconut over the wet glaze.
Lemon Vanilla
Reduce the lemon extract slightly and add extra vanilla for a softer citrus flavor.
Frequently Asked Questions
Can I Make These Without Lemon Extract?
Yes.
Increase the lemon zest slightly for stronger citrus flavor.
Can I Use 2% Milk?
Yes, although whole milk gives a slightly richer texture.
Why Are My Donuts Dense?
The batter may have been overmixed or the flour may have been overmeasured.
Can I Make These Ahead?
Yes.
Bake the donuts one day ahead and glaze them closer to serving time.
Can I Use This Recipe for Muffins?
Yes, although baking time will be longer depending on muffin size.
Storage
Store glazed donuts in an airtight container at room temperature for up to 2 days.
For slightly longer storage, refrigerate them for up to 4 days, but let them return to room temperature before serving for the softest texture.