Chocolate chip cookie bars

• 3/4 cup unsalted butter, room temperature
• 3/4 cup brown sugar
• 1 teaspoon vanilla extract
• 1 large egg
• 1 egg yolk
• 1 and 3/4 cup plain flour
• 1/2 teaspoon baking soda
• 1 cup chocolate chips
• 1 and 1/2 cups Rolo chocolates or Reese’s or Twix or Oreos! 
• Grease and line an 8 inch square baking tin with baking or parchment paper, ensuring two sides overhang. Preheat oven to 350. 
• In a large mixing bowl, cream butter and sugar for 3-4 minutes with an electric beater or until pale and creamy. Add vanilla, egg and egg yolk and beat again until combined. Sift in flour, baking soda and beat until a soft dough forms. Finally, add the chocolate chips.
• Divide the dough into two and press half of the cookie dough into the bottom of your pan to form one even layer. Scatter Rolo or Reese’s or Twix or Oreos all over the cookie dough.
• Grab the other half of your cookie dough and break it up into pieces and place on top of candy or cookies. Gently spread it out using your fingers so most of the candy or cookies is covered.
• Pop into the oven for approximately 18-20 minutes or until golden brown on top. Leave to cool completely in the tin before removing. Cut into slices and serve.