Yellow Birthday Cupcakes (Recipe Solved!)

Bahan-bahan (12 porsi)

• 1 and 3/4 cups (207g) cake flour (spooned & leveled)
• 2 teaspoons baking powder
• 1/4 teaspoon salt
• 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature
• 1 cup (200g) granulated sugar
• 2 large eggs, at room temperature
• 1/3 cup (80g) sour cream, at room temperature
• 2 and 1/2 teaspoons pure vanilla extract
• 3/4 cup (180ml) whole milk, at room temperature
• frosting: chocolate buttercream and sprinkles for garnish, or any of these frostings