Chocolate-toffee matzo bark

During the rest of the year, I make this irresistible bark with Saltines, but for Passover, I use lightly salted matzo. The salt on the crackers contrasts brilliantly with the sweetness of the caramel and chocolate. 5 lightly salted whole matzo crackers 1 cup (2 sticks) unsalted butter or... Bob Fila/Chicago Tribune/KRT