Preheat oven to 375°F
Whisk together all of the dry ingredients in a large bowl: all-purpose flour, cake flour, corn starch, baking soda, baking powder, salt and spices. Set aside.
1 1/4 cup all-purpose flour, 3/4 cup cake flour, 1 tsp. corn starch, 1/2 tsp. baking powder, 1/2 tsp. baking soda, 1/2 tsp. salt, 2 tsp. ground ginger, 2 tsp. ground cinnamon, 1/2 tsp. ground cloves, 1/2 tsp. ground nutmeg
In a stand mixer fitted with a paddle attachment, cream the butter and the sugars together until light and fluffy, 2-4 minutes.
1/2 cup cold, unsalted butter, cubed (8 Tbsp.), 1/2 cup brown sugar, packed, 1/4 cup granulated sugar
Turn the mixer off to add in the molasses to prevent a mess, then turn back on to combine. Add in the egg, egg yolk and vanilla extract. Use a rubber spatula to scrape down the sides and bottom of the bowl as needed.
1/3 cup molasses, 1 large egg, 1 large egg yolk, 1 tsp. vanilla extract
Gradually add in the dry ingredients until combined.
Roll cookie dough into balls (use lightly floured hands if dough is sticky or chill dough briefly), I like to make the cookies ~2 Tbsp. in size.
Roll the cookies in the coarse sugar.
1/4 cup coarse sugar (for rolling)
Place on a baking sheet or cookie sheet. Bake for 10-12 minutes or until the tops are cracked and the edges appear set.
Remove from the oven and let the cookies cool on the cookie sheet for 5 minutes before transferring to a wire rack to cool completely.
Melt white chocolate chips and coconut oil in microwave until smooth and dip cookies in melted chocolate and decorate with festive sprinkles (optional).
1 cup white chocolate chips, 1 Tbsp. coconut oil, melted
Cookies will stay fresh and soft covered at room temperature for up to 1 week.