Gingerbread Sandwich Cookies with Lemon Filling

Name: Gingerbread Sandwich Cookies with Lemon Filling
Ingredients: 3/4 cup unsalted butter , softened; 1 cup ( 220 g) sugar; 1 large egg; 1/4 cup molasses; 1 tablespoon fresh ginger , finely grated; 2 1/2 cups ( 315 g) all-purpose flour; 2 teaspoons baking soda; 1 teaspoon ground cinnamon; 1 teaspoon ground ginger; 1/4 teaspoon ground cloves; 1/4 teaspoon salt; Cooking spray for the cookie scoop; 1/2 cup unsalted butter , softened; 1 tablespoon fresh lemon zest; 1/8 teaspoon salt; 2 cups ( 240 g) powdered sugar; 1-2 tablespoons fresh lemon juice