Whole Lemon Loaf Cake with Citrus Glaze

One whole lemon, seeds removed, goes straight into the blender with eggs, sugar, milk, and oil. The result is a loaf that tastes like sunshine: ultra-moist, fragrant with citrus, and finished with a tangy glaze that seeps into every slice. This is the kind of cake that disappears quickly, whether served with coffee or as a simple dessert.

This whole lemon loaf cake is a study in simplicity. Instead of zesting and juicing, you puree an entire lemon—rind, pith, and all—into the batter. That means maximum citrus flavor and a tender crumb that stays moist for days.

The glaze, made from just powdered sugar and lemon juice, adds a bright, crackly top. It's a one-bowl, one-blender recipe that comes together in minutes and bakes into a loaf you'll be proud to serve.

Ingredients

Why this recipe works

Blending the whole lemon is the secret here. The rind contains aromatic oils that perfume the entire cake, while the pith contributes a gentle bitterness that balances the sweetness.

Because the lemon is pureed, there are no dry spots or uneven bits—just a uniformly fragrant crumb. The eggs and oil work together to create a tender, almost velvety texture that stays moist even after cooling.

The method is forgiving: whisk the wet and dry together just until combined, and the batter will be smooth and ribbon-like. The baking powder lifts the crumb without making it airy, so each slice is dense enough to hold the glaze but light enough to feel like a treat.

The glaze, applied while the loaf is completely cool, sets into a thin, crackly shell that contrasts beautifully with the soft interior.

Notes and substitutions

Use a whole organic lemon if possible, as the rind is free of wax and the flavor is cleaner. Remove the seeds first, but keep the pith—it's part of what makes the cake so moist. If the lemon is very large, you may want to use just half to avoid an overly intense citrus punch. The eggs should be at room temperature for the best emulsion.

Any neutral oil works here—vegetable, canola, or melted coconut. Milk can be swapped for a non-dairy alternative without changing the texture.

The glaze is flexible: add more lemon juice for a thinner drizzle or more powdered sugar for a thicker one. For a gluten-free version, use a 1:1 gluten-free flour blend; the texture will be slightly denser but still delicious.

• vegetable oil: melted coconut oil or canola oil
• whole lemon: 2 small lemons if very large, adjust to taste
• milk: any milk alternative, such as almond or oat milk

Equipment

• Blender
• Mixing bowl
• Whisk
• 9x5-inch loaf pan
• Parchment paper
• Cooling rack
• Small bowl
• Spatula