Pink Grapefruit Cupcakes

Name: Pink Grapefruit Cupcakes
Prep time: 30 min
Cook time: 18 min
Total time: 48 min
Cuisine: American
Ingredients: 1 1/2 cups unbleached all-purpose flour; 2 teaspoons baking powder; 1/4 teaspoon baking soda; 1/4 teaspoon kosher salt; 1/2 cup 2% milk; 1/3 cup grapefruit juice; 1/2 cup unsalted butter, room temperature; 1 cup granulated sugar; 1 ½ tablespoons grapefruit zest; 2 large eggs, at room temperature; 1 1/2 teaspoons pure vanilla extract; 1 (8-ounce) package cream cheese, room temperature; 1 teaspoon pure vanilla extract; 1/8 teaspoon salt; 3 cups confectioners’ sugar; 2-3 Tablespoons fresh grapefruit juice; 1/2 Tablespoon grapefruit zest; Sliced grapefruit, optional for garnish