Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
Cream the Butter and Sugars:
In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy, about 2-3 minutes.
Add Wet Ingredients:
Mix in the egg and vanilla extract until well incorporated.
Combine Dry Ingredients:
In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring just until combined.
Fold in Chocolate Chips and Rice Krispies:
Gently fold in the chocolate chips and Rice Krispies cereal, being careful not to crush the cereal too much.
Shape and Bake:
Drop rounded tablespoons of dough onto the prepared baking sheet, leaving about 2 inches between each cookie. Bake for 10-12 minutes, or until the edges are lightly golden.
Cool and Serve:
Allow the cookies to cool on the baking sheet for a few minutes, then transfer them to a wire rack to cool completely.
Notes
Helpful Notes and Tips
Room Temperature Ingredients: Ensure the butter and egg are at room temperature for a smooth dough that combines well.
Do Not Overmix: When folding in the dry ingredients, mix just until combined to keep the cookies soft and tender.
Evenly Spaced Cookies: Give each cookie enough space on the baking sheet to prevent them from sticking together as they spread during baking.