Brown Butter Cinnamon Bun Sandwich Cookies

Name: Brown Butter Cinnamon Bun Sandwich Cookies
Ingredients: 7 tablespoons unsalted butter; 1/2 cup granulated sugar; 2 tablespoons vanilla bean paste; 1 large egg; 1 3/4 cups all-purpose flour, plus more for dusting; 1/2 teaspoon kosher salt; 1/4 cup demerara sugar; 1 teaspoon ground cinnamon; 9 tablespoons unsalted butter, divided; 6 ounces cream cheese; 1/4 cup granulated sugar; 4 teaspoons ground cinnamon; 1/2 cup powdered sugar; 2 teaspoons vanilla bean paste; 2 teaspoons honey; 1 pinch kosher salt