Preheat your oven to 325°F (163°C). Grease a 9-inch springform pan and line the bottom with parchment paper.

In a medium bowl, whisk together all-purpose flour, baking soda, and salt. In a separate large mixing bowl, cream together room temperature unsalted butter and regenerative organic cane sugar until light and fluffy, around 3-5 minutes. Add the egg and yolk, followed by the dry ingredients and Christmas sprinkles, mixing until well combined. Press the dough evenly into the prepared pan and bake for 10-12 minutes, or until slightly golden. Allow it to cool completely.

While the crust cools, start making the cookie dough balls. In a medium bowl, cream together butter and sugar until smooth, then mix in pure vanilla extract and a splash of milk. Gradually add the flour and salt, folding in the sprinkles until just combined. Roll this mixture into small balls and chill them in the refrigerator for about 30 minutes to firm up.

In a large mixing bowl, beat softened cream cheese with an electric mixer until creamy and smooth, about 2-3 minutes. Gradually add sugar, sour cream, heavy cream, and vanilla, mixing until well blended. Incorporate the eggs one at a time, ensuring each is fully mixed before adding the next. Gently fold in the chilled cookie dough balls, then pour the cheesecake filling over the cooled crust in your springform pan.

Wrap the springform pan tightly in aluminum foil to prevent water from seeping in. Place the pan in a larger baking dish filled with hot water. Bake the cheesecake in the preheated oven for 60-70 minutes, or until the center is slightly jiggly but set. Let it cool in the oven for one hour before transferring it to the fridge to chill for at least 6 hours or overnight.

When the cheesecake is fully chilled, heat heavy cream in a small saucepan just until simmering, then pour over white chocolate chips in a bowl. Stir until smooth and silky, allowing it to cool slightly. Pour the ganache over the chilled cheesecake, spreading it evenly. Decorate with additional cookie dough balls and colorful sprinkles.