Instructions:

1. Prepare the Shortbread Base:
   • Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal.
   • In a large bowl, cream together the softened butter, powdered sugar, and vanilla extract until light and fluffy. Add the flour and salt, and mix until a soft dough forms.
   • Press the dough evenly into the prepared baking pan, smoothing it with your hands or the back of a spoon to create an even layer.
   • Bake the shortbread in the preheated oven for 20-25 minutes or until lightly golden around the edges. Let it cool completely in the pan.
2. Make the Caramel Layer:
   • In a microwave-safe bowl, combine the caramel candies and heavy cream. Microwave in 30-second intervals, stirring between each, until the caramel is fully melted and smooth.
   • Pour the melted caramel over the cooled shortbread base, spreading it evenly with a spatula. Allow the caramel to set for about 15-20 minutes in the refrigerator.
3. Create the Chocolate Topping:
   • Melt the chocolate chips in a microwave-safe bowl in 20-second intervals, stirring in between until smooth. For a shinier finish, add 1 tablespoon of vegetable oil and mix well.
   • Pour the melted chocolate over the caramel layer, spreading it evenly with a spatula. Let the chocolate set at room temperature or speed up the process by placing the pan in the refrigerator.
4. Cut and Serve:
   • Once the chocolate is fully set, lift the Twix cookie slab out of the pan using the parchment overhang. Place it on a cutting board and cut it into bars or squares.
   • Enjoy these Twix Cookies at room temperature or slightly chilled for a crispier texture.

Tips for Perfect Twix Cookies:

• Caramel Consistency: If the caramel seems too thick, add a bit more cream until you reach the desired pourable consistency.
• Chocolate Layer: For a smoother cut, score the chocolate layer gently before it fully sets, making it easier to slice without cracking.
• Storage: Store these cookies in an airtight container at room temperature for up to a week or refrigerate them to keep the caramel layer firmer.

Serving Suggestions:

• Serve these cookies with a cup of coffee, tea, or a cold glass of milk to complement their rich flavors.
• Pack them in decorative tins for a delightful homemade gift during holidays or special occasions.
• They also make a great dessert option for parties, potlucks, or any gathering where a sweet treat is needed.