Dried pastas are best served in hearty dishes like ragu sauces, soups, and casseroles. They are used in soups, stews, meat, seafood, vegetable dishes, and sauces. Marjoram is used for seasoning soups, stews, dressings, sauces, and for herbal teas. Roux is used as a thickening agent for gravy, sauces, soups and stews. It is also used as an ingredient in many dressings, glazes, sauces, soups, and marinades. Tomato sauce is used as a base for spicy sauces and moles. It is also an ingredient of many potato salads, barbecue sauces, and salad dressings. The powder is commonly added to soups, sauces and smoothies. It is served as part of a meal with various soups and sauces. Bound salads are assembled with thick sauces such as mayonnaise. Tempeh can be steamed, marinated, thinly sliced, blackened, or crumbled into sauces and stews. Their astringency creates added flavour in sauces, meats and other dishes. West Africans smoke them for use in soups and sauces. Sponge soaks up flavors from fresh fruits, fillings and custard sauces. Blair's Heat Collection includes a line of sauces used as marinades or dipping sauces.