Say you crave muffins hot from the oven at 9 a.m., but can only make it out of bed at 8 a.m.? Don’t mix the batter up the night before; the baking powder or soda will lose its leavening power and you will have flat, dense muffins. Instead, ready the components at night; it’ll only take a minute in the morning to mix the batter together. Here’s how: The night before, stir together the dry ingredients in a large bowl and leave covered on the contertop. Whisk wet ingredients in an another bowl, cover, and refrigerate. In the morning, rewhisk the wet ingredients, mix into the dry ingredients just until combined, and bake. Caveat: if you plan to add berries, fold them in in the morning rather than mix with wet ingredients, or your muffins will end up pink, purple, or even a weird blueberry blue-gray.