Chai Spice Cake with Cream Cheese Frosting

Ingredients

• 2 1/2 cups all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2 teaspoons ground cinnamon
• 1 teaspoon ground ginger
• 1/2 teaspoon ground cardamom
• 1/2 teaspoon ground cloves
• 1/2 teaspoon ground nutmeg
• 1/2 cup unsalted butter, softened
• 1/2 cup granulated sugar
• 1/2 cup packed light brown sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 1/4 cups brewed chai tea, cooled to room temperature
• 1/2 cup sour cream
• 8 oz cream cheese, softened
• 1/4 cup unsalted butter, softened
• 3 cups powdered sugar
• 1 -2 tablespoons milk, as needed for consistency