Ingredients:

• 250g butter (1.1 cup)
• 250g icing sugar (2 cups)
• 1 tablespoon vanilla sugar
• 5 eggs
• 200ml buttermilk (0.85 cup)
• 500g of 00 flour (4 cups)
• 3 teaspoons of baking powder
• Lemon peel
• 450g blueberries (3 cups)

Cooking Instructions:

Preheat the oven and prepare the pan:

1. Preheat the oven to 180°C and prepare a baking tray (29cm x 33cm / approximately 11.4 x 13 inches).

Mix butter and sugar:

2. In a bowl, mix together the butter, icing sugar and vanilla sugar.

Adding the eggs and buttermilk:

3. Add the eggs one at a time, mixing well after each addition. Then add the buttermilk.

Stir in the dry ingredients:

4. Gradually add the flour, baking powder and lemon zest to the mixture. Mix until you obtain a homogeneous mixture.

Adding the blueberries:

5. Gently fold the blueberries into the dough.

Cooking:

6. Pour the batter into the prepared pan and level it evenly.
7. Bake in the preheated oven for about 30 minutes or until golden brown.

Preparation of the icing:

8. In another bowl, mix the butter, cream cheese, powdered sugar, and lemon juice until smooth.

Icing and refrigeration:

9. Spread the frosting evenly over the cooled cake.
10. Place the cake in the refrigerator to allow the frosting to solidify.

Tip:  Serve this delicious blueberry cake at a party to delight your loved ones!