I'm a crispy cookie kinda guy, but these chewy snickerdoodles are righteous. There is a firm airiness to them that makes these cookies a joy to eat. Sometimes, it's not the flavor of something that makes it delicious, it's the texture.
For the cookie dough: In the bowl of a stand mixer fitted with the paddle attachment, cream the butter, sugar and salt on medium-high until it's light and fluffy.
In a medium bowl, whisk together the flour, cream of tartar and baking soda.
Add the egg white and half of the flour mixture to the stand mixer and slightly combine on low speed, scraping down the sides of the bowl as needed. Add the egg yolk and vanilla and combine on low speed, then add the remaining flour mixture and mix for 10 more seconds. Remove the bowl from the stand mixer and gently stir with a spatula until well combined and a nice dough forms.
Add the sprinkles and stir for a few more seconds to incorporate, but be careful not to mix too long or you will crush the sprinkles. Transfer the dough to a medium bowl, then refrigerate for 15 minutes.
Preheat the oven to 350 degrees F. Cover 2 sheet pans with parchment.
For the cinnamon sugar: Combine the granulated sugar and ground cinnamon in a small bowl. Roll the chilled dough into 1- to 2-inch balls, then roll the balls in the cinnamon sugar, completely coating them. Arrange the coated balls on the sheet pans about 3 inches apart so the cookies can spread without running into each other. Gently flatten the tops of each cookie with your fingers.
Bake for 15 to 18 minutes, until the cookies start to brown. Cool the cookies on a wire rack. Once cooled, stick the cookies in the freezer for an hour.
To assemble the cookie sandwiches, scoop the ice cream of your choice and place it on the flat side of a cookie, then sandwich the top cookie on top. Smush it until the ice cream is level with the edge of the cookies. Clean up the edges of the ice cream with an offset spatula so that they are flat.
Next, get a bowl that is big enough to fit the whole sandwich into it and fill it with chopped toasted nuts, mini chocolate chips or sprinkles. Roll the edges of each cookie sandwich in the topping to coat.
Eat immediately or put the sandwiches back in the freezer for 10 minutes to help the sprinkles stick, then wrap them in plastic wrap to share with friends!
Never leave a child unattended in the kitchen. This recipe is appropriate for children of various ages. When a recipe calls for cooking on the stove or using a knife, an adult should do those activities and let the child assist, if age appropriate.
Never leave a child unattended in the kitchen. Limit the child to tasks that are safe and age-appropriate.