Lemon Pound Cake Muffins

Bahan-bahan (12 porsi)

• 1¾ cups all purpose flour
• 1/2 teaspoon salt
• 1/4 teaspoon baking soda
• 1 cup granulated white sugar
• 1/2 cup (1 stick) butter, (at room temperature)
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 teaspoon lemon extract
• 1/2 cup sour cream, (divided)
• 2 cups powdered sugar
• 3 tablespoons freshly squeezed lemon juice
• 1/2 teaspoon finely grated lemon zest, (optional)