Once your matzo and toffee have set in the oven, remove it and immediately sprinkle on the chocolate chips, distributing evenly. Let them sit to melt on the hot toffee for a few minutes, then spread the chocolate with a spatula. When the chocolate is still melted, add your almonds or walnuts (if desired).

Let the entire sheet cool. You can put it in the fridge to the speed up the process, it should take about an hour in the fridge.