Preheat oven to 350℉. Prepare a 9"x4" loaf pan with baking spray. Gather your ingredients so that you have everything close at hand.
Using a fine-edge grater, zest 1 tablespoon lemon zest. Slice the lemon in half and squeeze out 1 tablespoon lemon juice with a citrus juicer. Save for later.
Mix the Cake Batter
In a large mixing bowl, cream together 1/2 cup butter (softened), 1 cup granulated sugar, and lemon zest until light and fluffy, about 2-3 minutes.
Next, add 3 large eggs, one at a time, beating after each addition. Add in 1 teaspoon lemon extractand 1 teaspoon vanilla extract. Scrape the bowl as needed.
In a small bowl, combine 1 1/2 cups all-purpose flour, 1/2 teaspoon salt, and 1 teaspoon baking powder. Whisk together to incorporate.
Gradually add the flour mixture to the creamed butter, alternating in thirds with 1/3 cup sour cream. Mix together until incorporated.
Bake the Cake
Spoon the cake batter into the prepared loaf pan, smoothing the batter to the edges until even. Run a butter knife through the batter once to release any air pockets.
Bake in preheated oven for 50-60 minutes, until the cake tests done with a toothpick.
Remove from oven and allow to cool for 10 minutes. Run a butter knife along the edges of the cake to release any baked on crust from the pan. Carefully turn the cake over to remove the cake from the pan and cool on a wire rack.
Prepare the Lemon Glaze
While the cake is still slightly warm, prepare the glaze.
In a small bowl, combine 1/2 cup powdered sugar and freshly squeezed lemonjuice. Whisk together until it pours in a fine stream.
Pour the glaze over the cake top so that it drizzles down the side.
Allow the cake to cool completely. This cake will serve 8-10 people.
Notes
*Unless otherwise indicated, all recipes on this site use salted butter.