Magic Cookie Bars | 7 Layer Bars

Preheat the oven to 350°F (176°C). Butter an 8-by-8-inch or 9-by-9-inch baking pan, dust with flour, and tap out the excess.
Combine the flour, baking powder, and salt in a bowl. Stir in the graham cracker crumbs and light brown sugar and mix well.
☞ TESTER TIP: You can make the graham cracker crumbs in the food processor, or do it the old-fashioned way by putting whole crackers in a resealable plastic bag and crushing them with a rolling pin.
Work the butter into the crumb mixture with your hands until the crumbs are evenly coated with buttery goo. Spread the crumb crust in the prepared baking pan, pressing down gently with your hands. You don't want to make the crust too dense or compact. Bake for 10 minutes, or until the crust is slightly golden. Remove from the oven and let cool while you make the topping. Oh, and leave the oven on.

While the crust is cooling, mix together the coconut, both chocolates, and the condensed milk. Add the pecans or other nuts, if desired. Spread the mixture evenly over the warm crust. Return to the oven and bake for 20 to 23 minutes, or until the top is set and light brown. Watch carefully toward the end of the baking time to make sure the top doesn't become too bubbly or dark.
Let the pan of bars cool on a wire rack for 2 hours or so, until the chocolate is no longer soft and they slice easily.
☞ TESTER TIP: Don't learn the hard way that the bars really do need to rest a while before slicing. They're simply too gooey to devour right away...unless you simply dig in with a spoon.
Cut into whatever size or shape you fancy.