This Keto Caramel Slice Millionaire's Shortbread is the most delicious layered dessert! There is a layer of crunchy shortbread, insanely delicious caramel and it's topped with a heavenly chocolate layer.
Preheat oven to 325 degrees F. Line an 8x8 or 9x9 pan with parchment paper and set aside.
In a medium bowl, combine the ingredients for the shortbread and pat onto the lined baking pan. Press to even out. Bake 15 minutes or until the top of the shortbread starts to turn golden.
To Make Caramel Layer
Whisk heavy cream and allulose in a medium-large saucepan over high heat, whisking and keeping a close eye on it so it doesn't bubble over, until brown and thickened and has reduced by half. Whisk in vanilla during the last minute. The caramel will take 10-20 minutes to turn golden depending on the size (width) of your pot and how hot your stove-top is. Cool for 10-15 minutes then pour onto prepared shortbread.
To Make Chocolate Layer:
Melt chocolate in a microwave-safe bowl in 30-second increments until softened. Add butter to the chocolate and whisk the melted chocolate and until creamy. Pour onto the cooled caramel layer. Gently shake the pan from side to side to help it spread.
Refrigerate 2-3 hours or until firm. Slice into 16 pieces and store remaining slices in an airtight container in the fridge for up to 2 weeks.
Note: To use unsweetened chocolate, add ½ cup powdered sweetener to the chocolate layer when adding the heavy cream.