Whole Lemon Loaf Cake with Citrus Glaze Step-by-step instructions

Before you start

Before starting, preheat the oven to 350°F (175°C) and line a 9x5-inch loaf pan with parchment paper. Set out all ingredients at room temperature. Cut the lemon into wedges and remove any seeds.

Measure the sugar, milk, oil, flour, and baking powder. Have the vanilla ready. The blender should be clean and dry. This recipe comes together quickly, so having everything measured and within reach makes the process smooth.

Instructions

Blend and Mix

1. 1Blend the citrus base
   Place the seeded lemon wedges, eggs, sugar, milk, and oil in a blender. Blend on high until completely smooth, about 30 seconds. The mixture should be pale yellow and frothy with no visible pieces of lemon.
   Look for The liquid is smooth, pale yellow, and slightly frothy.
   Tip Scrape down the sides of the blender once to ensure the lemon is fully pureed.
2. 2Mix the dry ingredients
   In a large mixing bowl, sift together the all-purpose flour and baking powder. This removes lumps and aerates the flour for a lighter crumb.
   Look for The dry mixture is light and free of lumps.
   Tip Sifting is key to a tender loaf; don't skip it.
3. 3Combine wet and dry
   Pour the blended lemon mixture into the bowl with the flour. Add the vanilla extract. Gently whisk until just combined into a smooth, ribbon-like batter. Do not overmix, or the cake will be tough.
   Look for The batter is smooth with a thick ribbon that falls in a slow ribbon when lifted.
   Tip Stop mixing as soon as no streaks of flour remain.

The blended mixture is smooth, pale yellow, and slightly frothy. After combining with the dry ingredients, the batter is thick and falls in a slow ribbon from the whisk. It should smell fragrantly of lemon and have no dry patches of flour.

Bake to Golden

4. 4Prepare the loaf pan
   Preheat the oven to 350°F (175°C). Line a 9x5-inch loaf pan with parchment paper, leaving overhang on the long sides for easy removal. Lightly grease the paper.
   Look for The pan is lined and ready for the batter.
   Tip The overhang acts as handles to lift the loaf out cleanly.
5. 5Bake the loaf
   Pour the batter into the prepared pan and smooth the top. Bake for 50 to 55 minutes, until a toothpick inserted into the center comes out clean or with a few moist crumbs. The internal temperature of the loaf should register 200°F (93°C) for a fully set crumb.
   Look for The top is golden brown and a toothpick comes out clean.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip If the top browns too quickly, tent loosely with foil.
6. 6Cool the cake
   Remove the loaf from the oven and let it cool in the pan for 10 minutes. Then lift it out using the parchment overhang and transfer to a wire rack to cool completely before glazing.
   Look for The loaf is set and slightly warm to the touch.
   Tip Cooling completely prevents the glaze from melting into the cake.

The loaf rises evenly, the top turns deep golden brown, and the kitchen fills with citrus aroma. A toothpick inserted in the center comes out clean or with a few moist crumbs. The loaf pulls away slightly from the edges of the pan.

Glaze and Slice

7. 7Make the glaze
   In a small bowl, whisk together the powdered sugar and fresh lemon juice until smooth and pourable. The glaze should be thick but still drizzle easily.
   Look for The glaze is opaque, white, and smooth.
   Tip Add more lemon juice a teaspoon at a time if too thick.
8. 8Glaze and serve
   Drizzle the glaze generously over the cooled loaf in a zigzag pattern. Let it set for a few minutes before slicing. Slice thick and press gently to show the moist, fragrant crumb.
   Look for The glaze drips slowly down the sides and sets to a matte finish.
   Tip For clean slices, use a serrated knife and wipe it between cuts.

The glaze is poured in a zigzag and slowly drips down the sides. It sets to a matte, crackly finish. When sliced, the interior is moist and yellow, with a tender crumb that yields gently to pressure.

Common mistakes

Overmixing the batter is the most common error; it develops gluten and makes the loaf tough. Mix just until the flour disappears. Another mistake is underbaking—the center should be fully set, not jiggly.

Also, don't skip cooling the loaf completely before glazing; a warm cake will absorb the glaze and lose the beautiful white finish. Finally, make sure the lemon is thoroughly blended; any large pieces will create bitter pockets.

How to tell it’s done

The loaf is done when a toothpick inserted into the center comes out clean or with a few moist crumbs attached. The top should be deep golden brown and spring back when pressed gently.

For certainty, an instant-read thermometer inserted into the center should read at least 200°F (93°C).

Because the loaf contains eggs, it must reach at least 160°F (71°C) internally to be safe, but the higher temperature ensures a fully set crumb.

• Egg dishes: 160°F (71°C) in the thickest part