01 -
In a saucepan set over medium heat, cook ¼ cup granulated sugar and 1 cup of raspberries, stirring constantly until they break down into a syrupy consistency, about 10 minutes. Strain through a mesh colander into a bowl and let cool. You should have 2-3 tablespoons of syrup.
02 -
Roughly chop ½ cup frozen raspberries into small pieces. Place them back in the freezer until needed.
03 -
In a large bowl, whisk together the gluten free flour, 1.5 tablespoons cornstarch, baking powder, and kosher salt. Set aside.
04 -
In a small bowl, mix 2 heaping tablespoons of cornstarch with 3 tablespoons of water until the mixture is thin and watery. It will initially appear thick and tacky.
05 -
In the bowl of an electric mixer fitted with the paddle attachment, beat the butter or vegan baking stick with 1 ¼ cups granulated sugar until soft and creamy, about 2-3 minutes.
06 -
Slowly beat the cornstarch water mixture, milk, and cooled raspberry syrup into the creamed butter and sugar mixture. The mixture will appear pink and chunky.
07 -
Slowly beat the dry ingredient mixture into the wet ingredients a little at a time, mixing until just combined. Optionally, add 3-4 drops of red food coloring for a uniform pink color.
08 -
Gently fold the frozen chopped raspberries into the dough using a spatula until marbled. Be cautious not to overmix to prevent a slimy texture.
09 -
Cover the dough with plastic wrap and freeze for at least 1 hour. Do not skip this step as the cookies will spread otherwise.
10 -
Preheat the oven to 325°F and line a baking sheet with parchment paper.
11 -
Form the dough into 12 large balls using an ice cream scoop. Roll each in 2 tablespoons of granulated sugar to coat.
12 -
Place dough balls 3-4 inches apart on the prepared baking sheet. Bake at 325°F for 15 minutes. Store extra dough balls in the freezer if baking in batches.
13 -
Immediately reshape cookies with a spatula if needed. Let cool on the baking sheet for 5 minutes before transferring to a rack.