Amaretto Apple Streusel Cupcakes

INGREDIENTS

• Cooking spray
• 6.75 ounces all-purpose flour (about 1 1/2 cups)
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 1/4 teaspoon baking soda
• 3/4 cup granulated sugar
• 1/4 cup (2 ounces) 1/3-less-fat cream cheese, softened
• 1/4 cup butter, softened
• 2 tablespoons amaretto (almond-flavored liqueur)
• 1 teaspoon vanilla extract
• 1 large egg
• 1/2 cup reduced-fat sour cream
• 1/4 cup 2% reduced-fat milk
• 3/4 cup finely chopped Gala apple
• 1 tablespoon all-purpose flour
• 2 tablespoons all-purpose flour
• 2 tablespoons brown sugar
• 1/4 teaspoon ground cinnamon
• 2 tablespoons butter, chilled
• 2 tablespoons sliced almonds
• 1 cup powdered sugar
• 4 teaspoons 2% reduced-fat milk