Instructions

1. Make the cookie dough: in a bowl using an electric mixer, beat together the butter and sugar until light and fluffy. Add the egg and vanilla, beat until incorporated. Add the flour, cinnamon, and salt, beating until just combined.
2. Line a 9×9 inch baking dish with parchment paper.
3. Divide the dough in half. Press half the dough into the prepared baking dish.
4. Evenly spread the Biscoff over the dough in the baking dish. Carefully press down the rest of the cookie dough to cover the filling.
5. Freeze the bars for 15 minutes, while you preheat your oven to 350° F.
6. Bake for 40 – 45 minutes, until just set in the center. Let cool.
7. To make the icing, whisk all the ingredients together until smooth.
8. Spread the icing over the pop-tart. Let dry, then cut into bars. Serve or store in an airtight container for up to 3 days at room temperature.