Assemble your baking trays and line them with parchment paper. Gather marshmallows and mini chocolate chips. Pour 1/3 sugar on a saucer and get out a flat bottomed glass that you will use to flatten the dough balls.

Melt butter slowly over medium low heat, remove from heat once the butter is melted.

Preheat oven to 350 degrees. These cookies are a little temperamental, it’s best to use the center shelf in the oven and cook each tray separately.

Mix dry ingredients first by whisking together the flour, baking powder, baking soda, cocoa powder and table salt.

In a large bowl put 1 ½ cups of sugar and pour the warm melted butter over the sugar. Whisk. Add oil, whisk again until the oil is evenly mixed. In the measuring cup that you had the oil in, add egg, milk and vanilla. Add this to the wet ingredients and whisk one last time.

Add the flour mixture to wet ingredients using a wooden spoon or rubber spatula. Add a little bit of flour at a time. Only mix enough to incorporate all of the ingredients. If it is too dry add a tablespoon of additional milk at a time.

Place a heaping tablespoon of dough into your impeccably clean hands (from Sara Moulton) and roll gently into a ball. Roll dough ball in the sugar on the saucer and then place onto parchment lined baking tray. Space evenly, 12 cookies will fit nicely onto a tray. Put first tray in the oven for 11 minutes. While cookies are in the oven, fill the second tray.

Cut marshmallows in half so that you end up with 2 circle eyes. Make sure they are ready when the cookie tray comes out of the oven. You will need to immediately place the marshmallow eyes into the cookies while they are still soft.

Take first tray of cookies out of the oven, immediately place second tray in oven for 11 minutes. Then place marshmallow eyes in first tray of cookies. Let cool on the tray for 5 minutes. Pull parchment paper off of the baking tray onto a cutting board or directly onto the counter. Place mini chocolate chips in the marshmallows while they are still soft. If you put the chips in too soon they will melt, too late and they won’t stick to the marshmallows.

Once the cookies are cool you can cut smile shapes out of the cookies, don’t go too close to the sides or the cookies will fall apart when you pick them up.

Let cool, fill a glass of milk and watch the smiles and giggles as kids gobble these cookies up.