1-First Step: Preparation and Mise en Place. Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan with butter or oil, then line it with parchment paper for easy removal. This prevents sticking and ensures clean slices. Measure all ingredients accurately. Spoon flour into the cup and level with a knife to avoid packing it down, which keeps the cake light. Zest and juice fresh lemons for maximum brightness; room-temperature eggs mix smoothly.

2-Second Step: Mix Dry Ingredients. In a medium bowl, whisk together 1 ½ cups all-purpose flour, ½ teaspoon baking soda, ½ teaspoon baking powder, and ½ teaspoon salt. Set this aside. Dry ingredients provide structure and lift. For gluten-free adaptations, swap flour now with a 1:1 blend. This step takes just 1 minute and sets up even rising.

3-Third Step: Beat Wet Ingredients. In a large bowl, beat 3 eggs and 1 cup granulated sugar with an electric mixer for 2 minutes until pale and fluffy. Add 2 tablespoons lemon zest, 2 tablespoons fresh lemon juice, ½ cup vegetable oil, ¼ cup sour cream, and 1 teaspoon vanilla extract. Mix on medium until smooth, about 1 minute. Oil ensures moisture without butter’s heaviness; sour cream adds tang and tenderness. Use dairy-free options for vegan tweaks here.

4-Fourth Step: Combine Batter. Gently fold dry ingredients into the wet mixture with a spatula. Stir just until no flour streaks remain, about 10 folds. Overmixing toughens the crumb, so keep it light. Battery should be thick and smooth. For high altitude, add 2 tablespoons extra flour. Let it rest 5 minutes if using gluten-free flour to hydrate properly.

5-Fifth Step: Bake the Loaf. Pour batter into the prepared pan and smooth the top. Bake at 350°F for 45-55 minutes. Test with a toothpick in the center; it should come out clean or with moist crumbs. If tops browns too fast, tent with foil after 30 minutes. Cool in pan 10 minutes, then transfer to a wire rack. Full cooling takes 1 hour, preventing soggy icing.

6-Final Step: Add Lemon Glaze and Serve. Whisk 1 cup powdered sugar with 1-2 tablespoons fresh lemon juice and ½ teaspoon zest until thick and drizzle-able. Spoon over cooled loaf, letting it drip down sides. For thicker glaze, use less juice. Slice into 8-10 pieces. Serve at room temp or chilled. Pairs great with tea. Total time: 1 hour 15 minutes. Store as noted below.