Three easy layers make up these fun no-bake cookie butter bars. The bottom layer is buttery coconut biscoff cookie heaven that gives a sturdy base with a fabulous crunch. Next comes the middle layer of whipped biscoff cookie buttercream frosting. It's smooth, sweet, and gloriously scrumptious. Last, but not least, is the top layer of cookie butter white chocolate ganache. Rich, decadent, and utterly delicious. It's the perfect way to finish off these easy no-bake dessert bars.