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Ingredients
Scale
- 2 cups + 2 tablespoons all-purpose flour
- 1 tablespoon baking powder
- ½ teaspoon fine sea salt
- ¾ cup unsalted butter softened
- 1 ¾ cup granulated sugar
- 3 large eggs
- 1 cup whole milk room temperature
- ¼ cup lemon juice fresh squeezed
- Zest of 2 lemons
- 1 tablespoon vanilla extract
- ¼ cup poppy seeds
- ½ cup unsalted butter softened
- 2 cups powdered sugar
- Pinch of sea salt
- 1 tablespoon lemon juice fresh squeezed
- Zest of 1 lemon
- 1 teaspoon vanilla extract
Instructions
- Preheat the oven to 350 degrees F. Spray a 9×13-inch baking pan with non-stick baking spray, then set aside.
- In a medium bowl, combine flour, baking powder, and salt, mixing until even. Set aside.
- In a stand mixer with the paddle attachment, beat butter and sugar until light and fluffy, about 2 minutes, scraping down the sides as needed.
- Add eggs one at a time, ensuring each is well mixed before adding the next.
- Gently incorporate the flour mixture until just combined, scraping down the sides again.
- Stir in the milk, lemon juice, lemon zest, and vanilla until combined.
- Add the poppy seeds, mixing until evenly distributed without over-mixing.
- Pour the batter into the prepared baking dish and bake for 35-42 minutes, or until a toothpick inserted comes out clean.
- Once baked, cool the cake on a wire rack completely.
- For the frosting, beat softened butter in a bowl until smooth, about 1 minute. Gradually mix in powdered sugar until fully incorporated.
- Add lemon juice, lemon zest, and vanilla extract, mixing until combined.
- Beat the frosting on medium until light and fluffy, about 3 minutes.
- Once cooled, frost the cake with lemon buttercream, slice, and serve.
Notes
For a stronger lemon flavor, adjust lemon juice and zest according to taste.
Ensure all ingredients are at room temperature for best results.
Store leftovers in an airtight container for up to three days.
- Prep Time: 15 minutes
- Cook Time: 57 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 380
- Sugar: 30g
- Sodium: 210mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 52g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 75mg