Ingredients
Method
- Preheat oven to 350°F (175°C) and grease a 9x13 inch pan. Whisk flour, sugar, baking powder, baking soda, and salt in a large bowl.
- Add buttermilk, eggs, melted butter, lemon zest, lemon juice, and vanilla. Stir just until combined.
- Pour into pan and bake 25–30 minutes, until a toothpick comes out clean. Cool in pan 15 minutes, then turn out onto a rack to cool completely.
- Beat cream cheese and butter until smooth. Add powdered sugar, lemon zest, and lemon juice; whip until fluffy.
- Spread frosting over cooled cake, slice into 12 squares, and serve.
Notes
Cooling time is not included in the prep or cook times. The cake freezes well unfrosted, and the frosting can be made a day ahead. For the best lemon flavor, use fresh zest and juice whenever possible.
