Lemon Sandwich Cookies

Ingredients (17)

• 10 Tablespoons butter
• 3/4 cup white sugar
• 1/4 cup brown sugar
• 1 egg + 1 egg yolk
• 1 Tablespoon fresh lemon juice
• 1/2 teaspoon vanilla
• 3/4 teaspoon lemon extract
• Zest of 1 lemon
• 1 1/2 cups all purpose flour
• 1/2 teaspoon salt
• 1 teaspoon baking powder
• Sanding sugar
• 1 8 ounce bar cream cheese, at room temperature
• 4 Tablespoons (1/4 cup) butter, at room temperature
• 1 1/2 cups powdered sugar
• Zest of 1 lemon
• 2-3 teaspoons lemon juice