01 - Preheat oven to 350°F. Line two baking sheets with parchment paper for easy cleanup and to prevent sticking.
02 - Whisk together all-purpose flour, baking soda, and salt in a medium bowl until evenly distributed. Set aside for later use.
03 - Beat softened butter with granulated sugar in a large bowl until light and fluffy, approximately 2-3 minutes. Incorporate egg yolks, vanilla extract, and sour cream until fully combined and smooth.
04 - Gradually add dry ingredient mixture to wet ingredients, mixing just until a soft dough forms. Avoid overmixing to prevent tough cookies.
05 - Combine softened cream cheese, granulated sugar, and vanilla bean paste in a separate small bowl. Beat until smooth and creamy with no lumps remaining.
06 - Scoop approximately 2 tablespoons of dough and flatten into a disc shape. Place 1 teaspoon of cream cheese filling in the center. Fold edges of dough around filling and pinch to seal completely. Place seam side down on prepared baking sheet.
07 - Repeat filling process with remaining dough and filling. Arrange cookies on baking sheets with at least 2 inches of space between each to allow for spreading during baking.
08 - Bake for 11-13 minutes until edges appear set but centers remain soft. Let cookies cool on the baking pan for 10 minutes, then transfer to a wire rack to cool completely.
09 - Sprinkle a thin, even layer of granulated sugar over each cooled cookie. Using a kitchen torch, carefully melt and caramelize the sugar until golden brown and crispy. Allow to set for 5 minutes before serving to achieve the characteristic brûlée crunch.