Vanilla Cupcakes with White Chocolate Frosting and White Chips

Ingredients

• 1 cup Ghirardelli Classic White Chips
• 6 ounces Ghirardelli White Chocolate Baking Bar
• 1 3/4 cups plus 2 tablespoons all-purpose flour
• 3/4 teaspoons baking powder
• 1/4 teaspoon salt
• 3/4 cup (1-1/2 sticks) unsalted butter, at room temperature
• 1 1/2 cups granulated white sugar
• 3 large eggs
• 3/4 cup whole milk
• 3/4 teaspoon fresh lemon juice
• 1/2 teaspoon pure vanilla extract
• 4 large egg whites
• 1 cup plus 2 tablespoons granulated white sugar
• 1 cup plus 2 tablespoons (2-1/4 sticks) unsalted butter, at room temperature