Preheat oven to 350°F and line a baking sheet with parchment paper and set aside. It is best if you use two baking sheets and rotate them for the batches. Dropping the second batch of dough on the hot cookie sheet will slightly change the structure of the cookie.
Pull the 14 tablespoons unsalted butter out of the refrigerator to sit at room temperature for 15 minutes before using.
Add 1 cup raisins and ¾ cup hot water to a medium bowl and let the raisins soak until ready to use.
In a medium bowl, whisk together the 2¼ cup old fashioned oats, 1¾ cup bread flour, 2 tablespoons powdered milk, 1 teaspoon salt, 1 teaspoon ground cinnamon, ½ teaspoon ground cardamom, ½ teaspoon baking soda, and ¼ teaspoon ground nutmeg.
1¾ cup bread flour, 1 teaspoon salt, ½ teaspoon baking soda, 2 tablespoons powdered milk
Add 10 tablespoons of the butter to a skillet and cook over medium heat until melted. Continue cooking and stirring frequently for 2 to 3 minutes until brown bits start to form in the bottom of the pan, the top is foamy, and it has a nutty aroma. Remove from heat and stir in the remaining 4 tablespoons of butter until melted. Transfer the butter to a large heat-safe bowl or stand mixer bowl fitted with a whisk attachment.
14 tablespoons unsalted butter
Add the ¾ cup dark brown sugar, ½ cup granulated sugar, and 1 tablespoon vanilla bean paste and mix to combine.
½ cup granulated sugar, ¾ cup dark brown sugar, 1 tablespoon vanilla bean paste
Add 1 large egg and 2 additional large egg yolks and mix for 30 seconds. Let rest for 3 minutes, then whisk again for 30 seconds. Repeat the resting and whisking for 2 more rounds for a total of 2 minutes of mixing. The batter should be smooth, thick, and shiny when done - almost like caramel sauce.
1 large egg, 2 additional large egg yolks
Use a rubber spatula or paddle attachment to mix the dry ingredients into the wet ingredients for 1 minute. The dough will seem very soft, this is normal and you do not need to chill it.
Drain the raisins, then blot them dry with a paper towel. Fold the raisins into the dough.
Portion the dough with a #16 cookie scoop and break the balls of dough in half and press the flat edges together so the broken and craggy side is upward. Press it together and drop the dough 3 inches apart on the prepared baking sheet. Top the scoops of dough with extra raisins and gently press them into the top of the dough.
Bake for 8 to 10 minutes, rotating halfway through. The cookies should look slightly brown around the edge. Remove from the oven and use a round biscuit cutter to circle and swirl the cookies to make them more round (video example here). Allow the cookies to cool for 3 minutes on the baking sheet before transferring them to a wire rack to cool completely.