Preheat the oven to 350°F (175°C).
In a bowl, whisk together the flour, baking soda, and salt.
In a separate bowl, cream together softened butter, brown sugar, and granulated sugar until light and fluffy.
Add the egg and vanilla extract to the butter mixture, beating until well combined.
Gradually add the dry ingredients into the wet mixture, stirring until just combined.
Fold in heavy cream gently to enrich the dough before forming cookies.
Using a cookie scoop, drop rounded tablespoons of dough onto a lined baking sheet.
Sprinkle granulated sugar over each cookie before baking to create a caramelized top.
Bake for 10-12 minutes until edges are lightly golden and tops are set.
Remove from the oven and let cool on the baking sheet for a few minutes before transferring to a wire rack.