In a large bowl, beat butter and sugars with a mixer until light and fluffy.
Add eggs and vanilla; mix until well combined.
In another bowl, mix all the dry ingredients.
Gradually beat the dry ingredients into the butter mixture until blended.
Stir in chocolate chips and Mallow Bits*. Cover and chill for 30 minutes or up to 24 hours.
Preheat oven to 350°F when ready to bake.
Drop 2-tablespoon portions of dough onto baking sheets, spacing them 2 inches apart.
Bake for 9-11 minutes, let cool on the sheets for 5 minutes, then transfer to wire racks to cool completely.