Ingredients

• 1/2 cup butter, softened
• 3/4 cup granulated sugar
• 2 eggs
• 1 tablespoon grated fresh lemon rind
• 1 tablespoon lemon juice
• 1 1/2 cups all-purpose flour
• 1/2 cup ground almonds
• 1 1/2 teaspoons baking powder
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 1 1/4 cups sour cream
• 1 1/2 cups fresh blueberries
• 1 cup icing sugar
• 2 tablespoons milk
• 1/4 teaspoon almond extract