Ingredients
Method
Steps
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a medium bowl, whisk together the flour, oats, baking soda, and salt. Set aside.
- In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
- Beat in the egg and vanilla extract until fully combined.
- Gradually mix the dry ingredients into the wet ingredients until just combined.
- Fold in the chocolate chips, mini marshmallows, and M&M's until evenly distributed.
- Scoop tablespoon-sized portions of dough and roll into balls. Place them on the prepared baking sheet, spacing them about 2 inches apart.
- Bake for 10–12 minutes, or until the edges are lightly golden but the centers still look soft and gooey.
- Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
Notes
For extra gooeyness, slightly underbake the cookies. Store in an airtight container at room temperature for up to 5 days. These cookies also freeze well for up to 3 months!
