Preheat the oven to 350 °F and line a large baking sheet with parchment paper.
In a medium saucepan, melt the vegan butter on medium-low, and stir every 30 seconds to prevent burning. The butter will start foaming and change from yellow to light brown. Once you smell a nutty aroma the butter is browned.
Remove vegan butter from heat and pour into a large bowl to cool for 10-15 minutes.
Once the butter has cooled slightly add the brown sugar, cane sugar, yogurt, and vanilla and whisk until combined.
Next add in the flour, corn starch, baking soda, and salt and fold ingredients with a rubber spatula until combined.
Then add the chocolate chips to the dough and fold to distribute throughout mixture.
On your baking sheet space out your graham crackers, add your chocolate bars, and marshmallows on top creating an uncooked s'more.
Use a large ice cream scoop to gather about 80 g of cookie dough and cover the s'more creating a dome of dough that touches the pan.
Bake the cookies for 20-25 minutes or until edges are golden brown.
Allow cookies to cook for 5 minutes on a baking sheet before transferring them to a wire rack.