Chocolate Snickerdoodles (Print Version)

# Ingredients:

01 - 1 cup (226 g) butter, room temperature.
02 - 1 cup (200 g) granulated sugar.
03 - ½ cup (100 g) brown sugar, gently packed.
04 - 2 large eggs.
05 - 1 tsp vanilla extract.
06 - 2 ¾ cups (330 g) all-purpose flour.
07 - ½ cup (40 g) unsweetened cocoa powder.
08 - 1 ½ tsp cream of tartar.
09 - 1 tsp baking soda.
10 - ½ tsp baking powder.
11 - ½ tsp salt.
12 - ¼ cup (50 g) granulated sugar for coating.
13 - 1 Tbsp ground cinnamon for coating.

# Instructions:

01 - Preheat oven to 350 degrees Fahrenheit. Line baking sheets with parchment paper or silicone mats.
02 - In the bowl of a stand mixer with the paddle attachment, cream the butter and sugars. Add eggs and vanilla. Scrape bowl. Mix well.
03 - In a separate large bowl, whisk together the flour, cocoa powder, cream of tartar, baking soda, baking powder, and salt.
04 - Add dry ingredients to the wet ingredients while mixing on low speed. Mix until just incorporated.
05 - Scoop dough and round into balls (about 2 Tbsp each). Mix together the sugar and cinnamon in a bowl. Roll cookie dough balls in cinnamon-sugar.
06 - For softer and thicker cookies, chill dough on tray in the freezer for 10 minutes or refrigerator for 30+ minutes before baking.
07 - Bake at 350˚F for 9-11 minutes, or until edges are set and the middle is still soft and slightly shiny.
08 - Immediately sprinkle extra cinnamon-sugar on top of the baked cookies while still hot. Let rest on tray for 2 minutes before transferring to a rack.

# Notes:

01 - Chilling dough results in thicker, softer cookies.
02 - Baking immediately gives flatter cookies with crisp edges and more cracks.
03 - Store in an airtight container once completely cooled.