Kue Mentega (Hato Sabure Buatan Rumah)

Bahan-bahan (30 porsi)

• 1⅔ cups all-purpose flour (plain flour)
• ½ cup sugar
• 8 Tbsp unsalted butter ((at room temperature))
• 1 large egg (50 g w/o shell) ((at room temperature; beaten))
• 1 tsp baking powder
• ½ tsp pure vanilla extract ((optional; I did not add since the original Hato Sabure does not include it))