The BEST Gingerbread Orange Sandwich Cookies!

Name: The BEST Gingerbread Orange Sandwich Cookies!
Ingredients: 1 1/2 cup all-purpose flour; 1 1/2 cup quick cooking rolled oats; 1 teaspoon baking soda; 1/2 teaspoon salt; 2 1/2 teaspoon ground ginger; 1 tablespoon ground cinnamon; 1/2 teaspoon ground nutmeg; 1/2 teaspoon ground cloves; 1/2 cup unsalted butter, softened; 3/4 cup light or dark brown sugar; 1/4 cup molasses; 1 large egg; 1/4 cup unsalted butter, softened; 4 ounce full fat block-style cream cheese; 1/4 teaspoon salt; 1 1/2 tablespoon orange zest; 1 teaspoon vanilla extract; 2 1/2 cup powdered sugar