Kue Mentega (Yang Terbaik!)

Bahan-bahan (12 porsi)

• 7 oz . (200g) cake flour (or all purpose flour)
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 2 sticks (225g) unsalted butter (room temperature )
• 7 oz . (200g) sugar
• 4 large eggs
• 1 teaspoon vanilla extract
• 4 tablespoons plain yogurt (preferred or full milk)