Prepare the Dough: In a bowl, whisk together flour, baking powder, and salt. In another bowl, cream butter and sugar until fluffy. Beat in eggs and vanilla. Gradually mix in the dry ingredients. Wrap the dough in plastic wrap and chill for 1 hour.
Prepare the Filling: In a saucepan, combine walnuts, brown sugar, honey, cinnamon, and milk. Cook on low heat until the mixture thickens slightly. Let cool.
Assemble Cookies: Preheat oven to 350°F (175°C). Roll out the dough on a floured surface...
