Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a mixing bowl, cream together the softened butter and granulated sugar until light and fluffy, about 3-4 minutes.

Beat in the egg and vanilla extract until well combined.

In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually incorporate the dry mixture into the wet mixture until just combined.

Stir in the heavy cream until the dough is slightly sticky and thick.

Use a cookie scoop or tablespoon to drop rounded balls of dough onto the prepared baking sheet, leaving space for spreading.

Sprinkle a small amount of brown sugar on top of each cookie before baking.

Bake in the preheated oven for 10-12 minutes or until the edges are golden and the center looks slightly underbaked.

Allow cookies to cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.