01 -
In a medium bowl, cream together the softened butter, granulated sugar, and brown sugar until smooth.
02 -
Stir in the flour and salt until well combined, then mix in the mini chocolate chips and vanilla extract.
03 -
Press the cookie dough mixture evenly into the bottom of a lined 8x8-inch baking pan.
04 -
In a medium saucepan over medium heat, melt the butter. Stir in the brown sugar, corn syrup, and heavy cream.
05 -
Bring to a boil, stirring constantly. Continue boiling for 2-3 minutes until thickened.
06 -
Remove from heat and stir in the vanilla extract. Pour the caramel over the cookie dough layer, spreading evenly.
07 -
In a heatproof bowl, combine the chocolate chips and heavy cream. Microwave in 30-second intervals, stirring in between, until melted and smooth.
08 -
Pour the chocolate mixture over the caramel layer and spread evenly.
09 -
Refrigerate the bars for at least 2 hours, or until fully set.
10 -
Once set, cut into squares and enjoy these decadent billionaire bars.