Millionaire's Shortbread

• 2 cups all purpose flour
• 1 1/2 cups unsalted butter, softened and divided
• 1/2 cup granulated sugar
• 1 can (14 oz) sweetened condensed milk
• 1/2 cup packed light brown sugar
• 3 tablespoons golden syrup (or light corn syrup)
• 1 1/2 cups semisweet chocolate chips

Instructions

1. 1

   Preheat oven to 350°F (175°C). Line a 9x9 inch baking pan with parchment paper.

2. 2

   To make the shortbread: Cream together 3/4 cup butter and granulated sugar until light. Stir in flour until dough is crumbly but holds together.

3. 3

   Press dough firmly into the bottom of the prepared pan. Bake for 20 minutes, or until light golden brown. Cool slightly.

4. 4

   To make the caramel: In a medium saucepan, combine sweetened condensed milk, brown sugar, golden syrup, and remaining 3/4 cup butter.

5. 5

   Cook over medium-low heat, stirring constantly, until butter melts and sugar dissolves. Bring to a gentle boil.

6. 6

   Boil gently, stirring continuously to prevent burning, for about 5-10 minutes until mixture thickens and turns a rich caramel color (it should reach about 225°F / 107°C).

7. 7

   Pour caramel over the shortbread base and smooth evenly. Let cool completely until caramel is set.

8. 8

   Melt the chocolate chips in a microwave-safe bowl in 30-second intervals spread over the set caramel layer.

9. 9

   Let the chocolate set at room temperature or in the fridge before cutting into squares.