Chewy snickerdoodle cookie bars are the quick and easy way to make a lot of cookies! They're full of spicy cinnamon flavor just like your favorite snickerdoodles! Perfect for cookie exchanges and holiday potlucks.
0 Preheat oven to 350° F.
1 Spray a 9x13 baking pan with no-stick cooking spray. Set aside.
2 Whisk together flour, cream of tartar, baking soda, cinnamon and salt in a large mixing bowl.
3 Set aside.
4 In the bowl of a stand mixer (or using a hand mixer), beat butter, sugar, and brown sugar about 3 minutes.
5 Add eggs and vanilla; mix until combined.
6 Scrape down the sides and bottom of the bowl as necessary.
7 Add flour mixture and blend until combined.
8 Transfer dough to prepared baking pan and press down firmly.
9 In a small mixing bowl, whisk together sugar and cinnamon for the topping.
10 Sprinkle evenly over the dough.
11 Bake at 350° F for 30 minutes - or until an instant read thermometer reads 180℉-190℉ when inserted in center.
12 Let the bars cool completely. They will fall apart if they have not cooled when cut and removed from the pan.
13 When cool melt the white chocolate chips carefully in the microwave, stirring every 10 seconds until melted.
14 Place melted chocolate in a ziploc bag and snip off a small piece of the corner.
15 Drizzle the chocolate on the cooled bars as desired.