In a large bowl, whisk together flour, baking soda, salt and cornstarch
In a bowl of a stand mixer, cream together the cold butter cubes and granulated sugar with the paddle attachment until light and fluffy (2-3 mins)
Beat in the eggs, one at a time, followed by the vanilla extract. Add in the cornstarch, baking soda, salt, cake flour, and all-purpose flour and mix on low speed until just combined. Stir in the candied walnuts.
Chill the dough for 30 minutes uncovered. While dough chills, preheat oven to 400° degrees
Bake one sheet of cookies at a time in the center rack of the oven for 10-13 minutes. Remove the cookies when they still feel slightly uncooked, they will firm up as they cool. Leave on the cookie sheet for 15 minutes
Candied Walnuts
In a large bowl, stir walnuts, brown sugar, honey, salt, and butter and stir together until walnuts are completely coated. Make sure they are evenly spread out or they will all stick to each other
Pour onto a parchment paper lined baking sheet and spread out evenly
Bake at 350 degrees for 10-15 minutes, stirring about halfway through, remove from oven and pull apart any that are stuck together and allow to cool for 15 minutes.
Maple Glaze
Combine powdered sugar with 1-2 tablespoons of maple syrup and stir, adding milk to thin it out a bit. I like to keep my glaze thick, but thin enough to drizzle. If you add too much milk, it will be to thin and melt into the cookie.
Once the glaze is drizzled, place the cookies in the freezer for 5-10 minutes to set the glaze and then remove.