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

In a large mixing bowl, combine softened butter, granulated sugar, and brown sugar. Cream together until fluffy, about 2-3 minutes.

Add the egg and vanilla extract, mixing until combined and smooth.

In a separate bowl, whisk together flour, baking soda, and salt. Gradually introduce to the wet mixture.

Fold the mixed dry ingredients into the wet ingredients until just combined.

Gently fold in the chocolate chips and Rice Krispies until evenly distributed.

Scoop tablespoons of dough onto the prepared baking sheet, leaving space between each.

Bake for 10-12 minutes, until the edges are golden and the centers are set.

Allow to cool on the tray for 5 minutes before transferring to a wire rack.