S'mores bars with cookie pieces

Ingredients:

• 8 graham crackers, grind finely
• 1.5 cups premium flour
• 2/3 cup powdered sugar
• 0.5 tsp salt
• 170 g butter, softened
• 1 large egg, room temperature
• 0.5 tsp vanilla extract
• 124g milk chocolate bar, such as Hershey's, broken into pieces
• 1 tbsp. creamy marshmallows

Preparation:

1. Preheat oven to 175°C. Line a 20cm square baking pan with foil or parchment paper, leaving an extra 5cm around the edges to allow for removing the finished bars.
2. In a small bowl, combine the crushed graham crackers, flour, sugar, and salt. In a medium bowl, beat the butter, egg, and vanilla extract with a mixer on low speed until smooth and creamy; don't try to make the mixture too fluffy. Add the crackers and continue beating on low speed until thoroughly combined and large lumps form.
3. Spoon about 2/3 of the mixture into the prepared pan and press it firmly into the bottom. Set aside a few pieces of chocolate for decoration (about 15 grams), and spread the remaining chocolate over the base of the pan. Layer the marshmallow cream on top of the chocolate, spreading it outward to cover as much of the surface as possible. For the next layer, scatter the remaining dough in small clumps, covering most of the marshmallow.
4. Bake for about 40 minutes, until the batter is golden brown and set in the center. The creamy marshmallows will puff up and break through the batter, baking slightly. Once cooled, the air will have released from the marshmallows. Cool in the pan for at least 15 minutes.
5. Pull the remaining foil/parchment paper out of the pan and remove the resulting bar. Microwave in 30-minute intervals until melted, then pour the reserved chocolate pieces over the bar. Cut the bar into 16 5 x 5 cm squares. Serve warm or at room temperature.
   
   Note
   
   Marshmallow cream is quite sticky when working with. Lightly coating the measuring cup and spatula/spoon with cooking spray or vegetable oil will make it a little easier to work with..