Coffee cakes aren't literally cakes at all, they're a type of quick bread; a bread dough that doesn't contain yeast. Coffee cakes are made by the simple method of mixing the dry ingredients together first, then cutting the cold fat (butter or shortening) into the dry ingredients, and lastly mixing the wet ingredients into the dry. You can also look for the best coffee dessert recipes online.
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This is also the way that biscuits and most quick bread are made. There are some coffee cake recipes that call for vegetable oil as the fat-this is supposed to make a moister and tenderer coffee cake.
Coffee Cake benefits from the addition of nuts, raisins, dried fruit, or just about any other sweet things that you like. You can also make a savory coffee cake with the addition of meats, onions, and other vegetables and spices. Also, try baking your coffee cake in a muffin pan instead of the traditional round layer cake pan or bundt cake pan. These make a quick breakfast that you can grab on your way out the door in the morning.
Coffee Cakes can be assembled at night and mixed together the next morning. Just mix all the wet ingredients together in one bowl, and all the dry ingredients together in another bowl. Put this in the fridge overnight and in the morning preheat the oven, mix the two bowls of ingredients together, and pop into the preheated oven. It will be done when your coffee is done brewing.