01 -
Preheat oven to 175°C. Grease and flour a 33x46 cm sheet pan or line with parchment paper.
02 -
In a large mixing bowl, beat softened butter and granulated sugar until light and fluffy, about 3–4 minutes on medium speed.
03 -
Add eggs one at a time, mixing thoroughly after each. Stir in lemon zest and fresh lemon juice until well combined.
04 -
In a separate bowl, whisk flour, baking powder, baking soda, and salt until evenly distributed.
05 -
Gradually add dry mixture to the creamed ingredients, alternating with buttermilk. Begin and finish with flour mixture, mixing just until incorporated.
06 -
Carefully fold in mixed berries, ensuring berries remain whole and are evenly distributed throughout the batter.
07 -
Transfer batter into prepared sheet pan, spreading evenly with a spatula. Bake for 25–30 minutes, or until a toothpick inserted in the centre comes out clean.
08 -
Allow cake to cool in pan for 10 minutes. Gently transfer to a wire rack to cool completely.
09 -
In a small bowl, whisk powdered sugar with lemon juice and enough milk to achieve a smooth, pourable consistency.
10 -
Once cake is completely cool, drizzle glaze across the surface. Optionally, garnish with fresh mint leaves and additional mixed berries before slicing and serving.