In a medium bowl hand whisk together the flour, oats, salt, baking powder, and baking soda. Set aside.
250 grams all purpose flour, 240 grams old fashioned whole oats, 5 grams baking soda, 3 grams fine sea salt
In the bowl of a stand mixer, work the granulated sugar and lemon zest together with your hands to release the lemon oils. Let sit for a couple minutes. Add the brown sugar and softened butter. Beat with the paddle attachment, on medium speed to form a smooth paste (1-2 minutes). *Alternative to use a large bowl with electric hand mixer.
150 grams granulated sugar, 2 tablespoons fresh lemon zest, 165 grams light or dark brown sugar, 227 grams unsalted European style butter (82% butterfat)
Mix in the lemon juice and vanilla. Then beat in one egg at a time. Scrape the bottom and sides of the bowl as needed.
1 tablespoon fresh lemon juice, 1 teaspoon vanilla bean paste or pure vanilla extract, 100 grams eggs
Slowly spoon in the flour and oats mixture, with the mixer on medium-low. Just long enough to make a thick cookie dough.
Take a small spatula and scrape any dough from the paddle.
Add in the chopped raisins, mix for a couple of spins to evenly distribute them throughout the cookie dough.
128 grams golden raisins
Pre-scoop the cookie dough balls using a 3 tablespoon cookie scoop and place them on a parchment paper lined tray or in airtight container. Each dough ball should eight around 60 grams. Chill cookie dough in the refrigerator for at least 2 hours or overnight to firm.
Preheat the oven to 350℉ (180℃) and line a rimmed cookie sheet with two sheets of parchment paper.
Space the cookies about 2-3 inches apart to allow for spreading. I usually bake 5-6 cookies at a time.
Bake on the middle rack for 14-15 minutes, rotating tray halfway through baking.
Watch for the edges to be golden brown while the centers still look puffy and soft. Place the pan on a wire rack and allow the cookies to cool on the pan for 10 minutes.
If any of the cookies spread too much or are misshapen, it's an easy fix. While they're still warm place a larger round cookie cutter or cup around the cookie and move it in a circular motion to reshape back into a perfect circle.
The center will sink and the cookies will firm as they cool. Transfer the cookies directly onto a wire rack to cool completely before icing.
Icing the Cookies
Place the sifted confectioners sugar, vanilla, and 2 tablespoons of the lemon juice in a medium shallow bowl. Whisk into a smooth thick icing . Add a touch more lemon juice if needed.
165 grams confectioners sugar, ½ teaspoon vanilla extract, 2-3 tablespoons fresh lemon juice
Take a cookie and hold it between your thumb and forefingers. Gently dip just the surface of the cookie into the icing. Lift and let the icing drip off any excess before inverting face up.
How deep you place the cookie will result in how much icing you'll have on top.
Allow icing to dry and set completely before stacking cookies.
Notes
Ingredients Used:
Flour Tested:
Gold Medal All Purpose Flour 10-11% protein
King Arthur All Purpose Flour 11.7% protein (yields a slightly thicker cookie)
Butter Tested: President Unsalted, European style butter, 82% butterfat
Baking From Frozen: I have tested these cookies by freezing the dough balls for about 30 min before baking and adding an extra minute or two to the bake time with great results.