Lemon Walnut Blender Loaf Cake

This lemon walnut loaf cake turns a whole lemon, a few pantry staples, and a blender into a moist, bright cake that’s ready in under an hour. The simple glaze adds a glossy finish, and the toasted walnuts give a perfect crunch.

Servings: 8 servings

Blender Simplicity

Just toss a whole lemon, eggs, oil, milk, and sugar into a blender, blend until smooth, then fold in flour, baking powder, and walnuts. The batter bakes into a tender, lemon-y loaf with a glossy glaze—no mixing bowls, no mess, and no dry cake.

The Secret to Ultra-Moist Lemon Cake

Blending the whole lemon (skin and all) with the liquid ingredients creates a natural emulsifier that keeps the crumb incredibly moist. The high-speed vortex breaks down the pectin in the peel, distributing flavor evenly, while the oil-milk blend adds richness without the need for butter in the batter.

Ingredients for Lemon Walnut Blender Loaf Cake

• 1 whole lemon, washed and cut into wedges (skin on)
• 3 large eggs
• 1 cup vegetable oil
• 1 cup whole milk
• 1 cup granulated sugar
• 2 1/2 cups all-purpose flour
• 1 packet (2 1/2 teaspoons) baking powder
• 1 cup chopped toasted walnuts
• 1 tablespoon unsalted butter, softened (for scoring)
• 1 cup powdered sugar
• 3 tablespoons fresh lemon juice
• Pinch of salt

How to Make It: Lemon Walnut Blender Loaf Cake

1. Place the lemon wedges, eggs, oil, milk, and sugar in a blender; blend on high for 2 minutes until smooth and pale yellow.
2. Pour the puree into a large mixing bowl and fold in the flour, baking powder, salt, and toasted walnuts with a spatula until just combined.
3. Line a 9x5-inch loaf pan with parchment, spread the batter evenly, and score the top with a strip of softened butter.
4. Bake in a pre-heated 350°F (175°C) oven for 45 minutes, or until a toothpick inserted in the center comes out clean and the top is deep golden.
5. While the cake bakes, whisk together powdered sugar and lemon juice to make a thick glaze.
6. When the cake is done, let it rest 5 minutes, then drizzle the glaze over the hot loaf, letting it cascade down the sides.
7. Cool completely on a wire rack before slicing; garnish with a little candied lemon zest if desired.

Baking Tips for Success

Make sure the lemon is thoroughly washed before blending, as the zest adds flavor but also bitterness if unclean. Toast the walnuts lightly in a dry skillet for 3-4 minutes to enhance their aroma. Scoring the top with butter creates a subtle buttery crust and helps the glaze adhere evenly.

Serving Ideas

Serve each slice warm or at room temperature, paired with a dollop of lightly sweetened whipped cream or a scoop of vanilla ice cream. A simple side of fresh berries balances the lemon tang and makes a lovely brunch plate.

Common Questions

Can I use butter instead of oil?

Yes, substitute the oil with an equal amount of melted unsalted butter for a richer flavor.

What if I don’t have a blender?

A food processor or hand-mixer will work; blend the lemon and liquids until very smooth.

Can I add other nuts or omit them?

Feel free to swap walnuts for pecans or almonds, or leave them out for a pure lemon loaf.