1 Igneous rocks that form too quickly for crystals to form have what is called a glassy texture. 2  Obsidian is the only glassy igneous rock, and can be identified by its dark color. 3  This looks like dark black glass. An example of an intrusive rock is granite. 2  When magma is above the earth's crust, it is known as lava. 3  Extrusive rocks form through very fast cooling of lava above the Earth's surface. 4  Extrusive rocks have very small, almost microscopic crystals.
A bittersweet, mild spice, marjoram is common in German and Polish cooking, where it is an important part of the spice mixture for sausage. It is also found in the popular English dish of roast goose with chestnut stuffing.
Classic Tiramisu is made with ladyfingers soaked in coffee, and occasionally marsala wine or rum. The soaked ladyfingers are alternately layered with mascarpone cheese, which is normally mixed with the traditional zabaglione custard. This provides a cake of several layers, which is often topped off with cocoa powder. Common mistakes in making Tiramisu are over-soaking the ladyfingers.