Toasted S'more Chocolate Chip Cookies

Bahan-bahan (16 porsi)

• 2 and 1/4 cups (281g) all-purpose flour (spooned & leveled)
• 1 teaspoon baking soda
• 1 and 1/2 teaspoons cornstarch*
• 1/2 teaspoon salt
• 3/4 cup (12 Tbsp; 170g) unsalted butter, melted & cooled 5 minutes*
• 3/4 cup (150g) packed light or dark brown sugar
• 1/2 cup (100g) granulated sugar
• 1 large egg + 1 egg yolk, at room temperature
• 2 teaspoons pure vanilla extract
• 1 cup (180g) semi-sweet chocolate chips
• 2 ounces semi-sweet chocolate or Hershey’s bar, chopped (or more chocolate chips)
• 2 full sheet graham crackers, broken into pieces
• 1/2 cup miniature marshmallows