01 - Preheat oven to 350°F (175°C). Line 2 baking sheets with parchment paper and set aside.
02 - In a medium bowl, whisk together flour, baking soda, and salt until evenly distributed. Set aside.
03 - In a large bowl, beat softened butter with sugar using an electric mixer until light and fluffy, approximately 3-4 minutes.
04 - Mix in egg yolks, vanilla extract, and sour cream into the butter mixture until fully combined and smooth.
05 - Gradually incorporate the dry ingredients into the wet mixture, mixing until a soft dough forms. Avoid overmixing to maintain tender texture.
06 - In a small bowl, combine cream cheese, sugar, and vanilla bean paste. Beat until smooth and creamy with no lumps.
07 - Scoop approximately 2 tablespoons of cookie dough and flatten into a disc. Place 1 teaspoon of cream cheese filling in the center, fold dough around filling, and pinch edges to seal completely.
08 - Place filled cookies seam side down on prepared baking sheets, spacing at least 2 inches apart to allow for spreading.
09 - Bake for 11-13 minutes until edges are set but centers remain soft. Cool on baking sheets for 10 minutes, then transfer to a wire rack to cool completely.
10 - Sprinkle a thin, even layer of granulated sugar atop each cooled cookie. Using a kitchen torch, carefully caramelize the sugar until golden and crisp. Allow to set for 5 minutes before serving.