Ice Cream Sandwiches with Pumpkin Snickerdoodles

Ingredients

• 1 tsp vanilla extract
• 1/2 tsp salt
• 1/4 cup brown sugar
• 3/4 tsp baking soda
• 1 cup granulated sugar
• 1/2 tsp cream of tartar
• 2 1/4 cups all-purpose flour
• 1 1/2 tsp pumpkin pie spice
• 6 to 8 cups vanilla ice cream or flavor of choice (slightly thawed)
• 3/4 cup + 2 tbsp unsalted butter (cold and cubed)
• 1 egg yolk (straight from fridge)
• 1/4 cup pure pumpkin puree
• sugar and pumpkin pie spice (for rolling)