Rosie’s note: Built to use exactly 384g of all-purpose flour, so nothing sits half-open in the pantry. The heavy cream and the cold-start bake give you a soft, melt-in-your-mouth finish instead of a crisp snickerdoodle. From The Lonnie Collection: Fluffy Cookout Cookies.

Active time is about 30 minutes, dough chills overnight. Yields around 30 cookies at 30g each. Small amounts at or under 10g are marked [Precision Check: Use Spoon], since the 1g scale gets less reliable down there.

Ingredients

Cream together

IngredientScaleTraditional
Butter (unsalted, softened)215g~1 cup minus 1 tbsp
White sugar275g1 1/4 cups + 1 tbsp

Wet

IngredientScaleTraditional
Eggs100g2 large
Heavy cream55g3.5 tbsp

Dry

IngredientScaleTraditional
All-purpose flour384g~3.2 cups
Cream of tartar7g2 tsp [Precision Check: Use Spoon]
Baking soda6g1 tsp [Precision Check: Use Spoon]
Fine salt3g1/2 tsp [Precision Check: Use Spoon]

Cinnamon-sugar coating

IngredientScaleTraditional
White sugar50g1/4 cup
Cinnamon8g1 tbsp [Precision Check: Use Spoon]

The night before

  1. Dry prep. In a bowl, weigh the 384g (~3.2 cups) AP flour. Add the 7g (2 tsp) cream of tartar, 6g (1 tsp) baking soda, and 3g (1/2 tsp) fine salt. Whisk together. Cream of tartar is what gives a snickerdoodle its signature tang, so do not skip it.
  2. The creaming phase. With the hand mixer, cream the 215g butter and 275g (1 1/4 cups + 1 tbsp) white sugar for 3 minutes until light and airy.
  3. Wet ingredients. Add the 100g (2) eggs and 55g (3.5 tbsp) heavy cream. Mix until smooth.
  4. Combine. Fold in the dry flour mix by hand until a soft dough forms. Do not overwork it.
  5. Coating. In a small bowl, mix the 50g (1/4 cup) white sugar and 8g (1 tbsp) cinnamon.
  6. Chill. Roll the dough into 30g balls. Roll each ball in the cinnamon-sugar while it is still tacky so the coating grabs. Place on a tray, cover tightly, and refrigerate overnight.

Bake day

  1. Preheat the convection oven to 350 F.
  2. Cold start. Take the dough balls straight from the fridge to the baking sheet. Space them 2 inches apart.
  3. Bake 9 to 11 minutes. Pull when the edges are set but the center still looks slightly underbaked. They finish carrying over on the hot sheet, and that is what keeps them pillowy.
  4. Rest. Let the cookies sit on the hot baking sheet 5 minutes before moving to a wire rack.

Storage, reheat, repurpose

  • Storage: airtight container at room temperature, 4 to 5 days. Freeze the raw 30g coated balls up to 3 months and bake from frozen, adding a minute or two.
  • Reheat: air fryer at 300 F for 2 to 3 minutes to bring back the soft center.
  • Repurpose: crush a couple into a bowl of Greek yogurt with a drizzle of honey for a fast cinnamon-cookie parfait.