Whole Lemon Blender Cake with Lemon Glaze

This whole lemon blender cake is the brightest, most impossibly moist loaf you will ever make. A whole lemon—rind, pith, and all—gets whizzed into the batter, releasing essential oils and pectin that perfume every crumb.

You will not believe the texture: dense yet tender, almost pudding-like, with a crackly glaze that soaks into the warm crust.

The magic of this cake lies in its simplicity. Everything goes into a blender: a washed lemon cut into wedges, eggs, oil, milk, and sugar. Blend for two minutes until silky, fold in flour and leavener, and bake.

The result is a domed golden loaf with a moist, tight crumb and a bright citrus zing that lingers. The glaze—just confectioners' sugar and lemon juice—seeps into the hot cake, creating a shiny, crackly top that contrasts with the tender interior.

Ingredients

Why this recipe works

Blending the whole lemon is the game-changer. The rind contains aromatic oils that infuse the batter with intense lemon flavor, while the pectin in the pith helps create a tender, moist crumb.

Unlike zesting and juicing, this method requires no fine grating and captures every bit of the fruit.

The high ratio of liquid—oil, milk, and eggs—keeps the cake exceptionally moist. Baking at a moderate 350°F allows the center to cook through without drying out, while the sugar and lemon juice glaze adds a tangy-sweet finish that caramelizes slightly on the hot crust.

Notes and substitutions

Use a medium-sized lemon, about 4 to 5 ounces. Wash it thoroughly to remove any wax or residue. The pith adds a pleasant bitterness that balances the sweetness, so do not peel it. For a less bitter cake, remove the seeds before blending, though they are not noticeable in the finished cake.

A high-speed blender works best, but any blender will do. Blend for the full two minutes to ensure the lemon is completely pureed.

The batter will be thin, similar to pancake batter—this is normal. Do not be tempted to add more flour; the cake relies on the liquid to create its signature moist texture.

• vegetable oil: canola or another neutral oil
• whole milk: 2% or skim milk, or a plant-based milk for dairy-free
• all-purpose flour: whole wheat pastry flour for a slightly denser texture
• granulated sugar: caster sugar (superfine) for quicker dissolving

Equipment

• Blender
• 9x5-inch loaf pan
• Mixing bowl
• Whisk
• Cooling rack
• Serrated knife