• Preheat the oven to 350F and line a baking sheet with parchement paper and set aside.
• Cream the softened butter and brown sugar together until light and fluffy.
• Mix in one egg and the vanilla butter emulsion.
• Add in the flour, salt, and baking soda and mix to combine. Make sure to stop mixing as soon as the flour. mixture disappears to avoid overmixing. Fold in the white chocolate chips and the lucky charms cereal.
• Using a large cookie scooper, scoop out 8 large cookie dough balls, place them on the prepared baking sheet, flatten them to about 1 inch in thickness, and bake for 11-12 minutes. Let the cookies cool down on the baking sheet for 20-30 minutes then transfer to a cooling rack.

Make the marshmallow cream frosting

• Cream the butter, cream cheese, and marshmallow fluffy together until combined.
• Add in the vanilla and the powdered sugar and whip until light and fluffy.
• Frost each cooled cookie then top with some Lucky Charms marshmallows and enjoy!