01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, and salt in a medium bowl. Set aside for later use.
03 - Beat softened butter with granulated sugar in a large bowl until light and fluffy, approximately 3 minutes.
04 - Mix in egg yolks, vanilla extract, and sour cream until fully combined and smooth.
05 - Gradually blend dry ingredients into wet mixture, mixing just until soft dough forms. Avoid overmixing to prevent tough cookies.
06 - Combine cream cheese, sugar, and vanilla bean paste in a small bowl. Beat until smooth and creamy.
07 - Scoop approximately 2 tablespoons dough, flatten into disc, and place 1 teaspoon cream cheese filling in center. Fold dough around filling, pinch edges to seal, and place seam-side down on prepared sheet.
08 - Repeat with remaining dough and filling, spacing cookies at least 2 inches apart to allow for spreading.
09 - Bake for 11 to 13 minutes until edges are set but centers remain soft. Cool on pan for 10 minutes, then transfer to wire rack.
10 - Sprinkle thin, even layer of granulated sugar on each cooled cookie. Using kitchen torch, carefully brûlée sugar until golden and crisp. Let cool 5 minutes before serving.