Mini Powdered Sugar Donut Muffins

Bahan-bahan (24 porsi)

• 1/3 cup (5 Tablespoons; 71g) unsalted butter, softened to room temperature
• 1/2 cup (100g) granulated sugar
• 1 large egg, at room temperature
• 1 teaspoon pure vanilla extract
• 1 and 1/2 cups (190g) all-purpose flour (spooned & leveled)*
• 1 and 1/2 teaspoons baking powder
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1/2 cup (120ml) milk, at room temperature*
• 3 Tablespoons (43g) unsalted butter
• 1 cup (120g) confectioners’ sugar