Red Velvet Sugar Cookie Bars

Bahan-bahan (16 porsi)

• 2 1/2 cups flour
• 1/4 cup unsweet­ened cocoa
• 1/2 teaspoon salt
• 1 teaspoon bak­ing pow­der
• 1 cup but­ter (softened)
• 1 1/2 cups sugar
• 2 eggs
• 2 teaspoons vanilla extract
• 2 Tablespoons red food coloring
• 8 ounces cream cheese (softened)
• 1/2 cup butter (softened)
• 2 cups sifted powdered sugar
• 1 teaspoon vanilla