Making matzo brittle is actually quite simple. Brown sugar and butter are cooked into a caramel sauce and spread on a layer of matzo and then baked until bubbling.
Preheat oven to 325 degrees. Line a half sheet pan with non stick foil. Lay the matzo in a single layer on the sheet pan, breaking the pieces as needed to fit.
In a small saucepan combine the butter and sugars and cook over high heat, stirring frequently. Once the butter has completely melted, cook an additional 2-3 mins, stirring constantly. Stir in the salt.
Use a spatula to smooth the chocolate over the caramel evenly. Sprinkle with pecans and toasted coconut. Press lightly to adhere. Cool to room temperature or pop into the refrigerator to set.