1-Making this Twix Bars Recipe at home is straightforward and fun, with steps that build on each other for the best results. Start by preheating your oven to 300°F (150°C) and lining a 9×13 inch pan with parchment paper or non-stick spray to make removal easy. This simple prep ensures your bars come out cleanly and look professional.

2-Next, for the shortbread layer, combine 1 cup cold butter, 1 cup powdered sugar, 2 cups all-purpose flour, and 1 teaspoon vanilla extract using a pastry blender until a dough forms. Press this mixture evenly into the prepared pan and bake for 28 to 35 minutes until it’s lightly golden. Let it cool completely before moving on, as this sets the base perfectly.

3-Then, prepare the caramel by combining 1 cup heavy cream, 1 cup light corn syrup, 1 cup granulated sugar, and 14 ounces sweetened condensed milk in a saucepan over medium heat. Stir frequently and bring it to a rolling boil, cooking until it reaches the soft-ball stage you can test this by dropping a spoonful into ice water to see if it forms a soft ball. Pour the caramel over the cooled shortbread, let it cool briefly, and refrigerate for at least 2 hours or overnight for that gooey center.

4-Finishing Touches Finally, for the chocolate layer, melt 3 cups chopped milk or dark chocolate with 1 tablespoon butter using a double boiler or microwave in short intervals, stirring until smooth. Pour this over the caramel layer and smooth it out evenly, then refrigerate until everything sets. The total preparation time is around 2 hours and 35 minutes, including cooking and chilling.