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Pick a quiet day when you have the whole kitchen to yourself and clear your schedule. If your schedule doesn't allow you to take an entire day for cooking, break the task into 2 half-days. Have a friend or family member help out with the cooking, if possible. It's going to be a lot of work, but you'll enjoy the benefits all month long! Check each recipe for prep and cook times so you can factor in how many hours of work you'll need to put in on cooking day. Go shopping early in the day, since your shopping list is probably pretty long and if you rush, an ingredient can easily be forgotten. Shopping the day before is also helpful for dishes that include vegetables, since they'll be fresh and crisp when you prepare them. Look for sales and use coupons to cut down on your grocery costs. Keep in mind that you're buying enough food for a whole month, so the price may be a little higher than what you're used to if you typically shop weekly. Make sure you have enough pots, pans, baking dishes, and measuring spoons for the big day! You may also need to stock up on airtight containers, freezer bags, aluminum foil, and other storage items. The amount of time it takes you to prepare ingredients for your meals will vary depending on what you're making, but you can expect about 3 hours' worth of meal prep work. If you get the chopping, defrosting, marinating, and so on done the day before, you can focus on mixing, assembling, and cooking each meal on cooking day. For example, if you need chopped onions for a recipe, chop them up and store them in an airtight container in your fridge. When you're ready to cook, all you have to do is open the container and dump the onions in. You don't have to do prep work the day before. If you want to do it on cooking day, don't forget to factor in an extra 2-3 hours of work time. Some dishes can be worked on simultaneously, so take advantage of that if you can. For example, you can stir-fry meat on the stove while you bake a casserole in the oven and simmer a stew in the slow cooker. It's usually best to get the harder meals out of the way first, but you can approach the sequence however you'd like. Decide on the sequence before you get started to help you stay focused and organized. You may need to use multiple timers to keep track of different cook times when you're cooking dishes simultaneously. You may need to adjust cooking times accordingly when doubling or tripling recipes.
Schedule a day to devote entirely to cooking. Shop for ingredients the day before you plan to cook. Get the prep work done the day before you cook. Work on multiple recipes at once to save time.