To begin with first take crackers and marshmallows.
Put the crackers in mixie, put on pulse mode and pulse it few times to get crumbs like shown below. Do not powder it fine. Cut the marshmallows into tiny bits like shown. Set aside.
To a mixing bowl add flour,baking soda, baking powder, salt and cornflour.
Mix it well using a whisk. Set aside.
To another mixing bowl add butter, granulated sugar and brown sugar.
Whisk it well until creamy. I used my electric beater to do this.
Add an egg and vanilla essence.
Whisk it well.
Add flour mixture.
Scrap the bowl and mix it.
Mix it.When half of the flour is mixed, add cracker crumbs, chocolate chips and marshmallows. Reserve a tablespoon of marshamallows for topping later.
Fold it using a spatula.
Using a icecream scooper, scoop put the dough. I always use icecream scooper for even sized cookies.
Roll and flatten it a bit. Repeat to finish the dough. Meanwhile preheat oven at 176 deg C for 10 mins.
Line a parchment paper on a baking tray. Line the cookies on it.
You can 2 options : Either bake in preheated oven at 176 deg C for 10 mins else bake for 8 mins. Pull out the cookie tray.
Top it with small chocolate chunks and reserved marshmallows. You can even use choco chips for topping.
Bake again for additional mins. And your cookies are done.
Chewy s'mores cookies ready!