Batch cooking: a complete guide to cooking once and eating all week

Batch cooking is the practice of cooking once or twice a week several portions or components to eat over the following days. Done well, it frees 4 to 6 hours of weekly cooking and mechanically improves nutritional balance. Done poorly, it ends in containers forgotten at the back of the fridge and a quiet quit in week three.

Two methods exist and suit different profiles. The finished-meals method prepares 5 to 7 identical portions of the same dish — simple to execute, but boredom arrives around Wednesday. The components method prepares 4 to 6 separate bases (starches, proteins, vegetables, sauces) to recombine differently each day — more variety, more sustainable over time. For a beginner who wants it to last, choose components.

Minimum equipment, bought once and for good: eight airtight 600–800 mL containers that are clear and stackable (stainless steel, glass, or BPA-free plastic depending on budget). A large baking sheet for roasted vegetables in quantity. A Dutch oven or pot for starches. Optionally, erasable labels for dating. Container transparency is non-negotiable — what is not seen is forgotten.

Sample batch 1: Mediterranean (90 minutes, about €12 for 4–5 portions). Bases: 250 g cooked basmati rice, 1 tray of roasted vegetables (peppers, zucchini, eggplant, red onions), 6 chicken breasts roasted with herbes de Provence, homemade tzatziki (Greek yogurt, cucumber, garlic, mint). Recombinations: quinoa-chicken-vegetable bowls, chicken-tzatziki wraps, warm salads, poke bowls.

Sample batch 2: Asian (90 minutes, about €10 for 4–5 portions). Bases: cooked soba noodles, 400 g of soy-ginger marinated tofu, grilled, wok-sautéed vegetables (broccoli, carrots, snow peas, sesame), homemade sweet-and-sour sauce. Recombinations: stir-fried noodles, tofu-vegetable bowls, tofu wraps, reconstituted quick soups.

Sample batch 3: versatile family batch (120 minutes, about €15 for 6 portions). Bases: 500 g cooked whole-grain pasta, homemade lentil Bolognese tomato sauce (plant-compatible), 1 tray of roasted vegetables, 6 hard-boiled eggs, grated cheese. Recombinations: Bolognese pasta, frittata, complete salads, egg sandwiches, quick gratins.

Fridge storage times (at 4°C maximum): cooked meat and fish 3 days, cooked rice and pasta 4–5 days, roasted vegetables 5 days, cooked legumes 5 days, homemade yogurt-based sauces 3 days, tomato sauces 5 days, hard-boiled eggs 5 days in the shell. Beyond these times, freeze by portion (extension to 2–3 months without significant quality loss).

Rapid cooling is crucial. A hot dish put in the fridge warms the environment and shortens the storage of every other food. Cool 20–30 minutes at room temperature (or faster by transferring into smaller containers), then refrigerate. Never leave food more than two hours at room temperature before chilling it.

Foods that do not hold up to batching and should be prepared separately the same day: raw leafy greens that wilt, fried foods that lose their crunch, mashed potatoes whose texture degrades in storage, cut avocado that oxidizes even with lemon, fritters and breaded items. These foods are still welcome during the week, just not in the Sunday batch.

The mistakes that kill the practice. Excessive ambition is number one: eight complete recipes in four hours = exhaustion and quitting. Number two: no planned wildcard night, which demands perfection and ends in frustration. Number three: not checking fridge inventory before shopping, which creates duplicates and waste. Number four: under-investing in containers (poor seals, lack of visibility), which degrades storage quality.

How long does a batch last before boredom sets in? With the components method, up to 5 days without noticeable monotony because each day combines the bases differently. With the finished-meals method, 3 days maximum before boredom for most palates. Beyond that, freeze the extra portions rather than forcing them.

Adapting the batch to a specific diet. Vegetarian: replace animal proteins with tofu, tempeh, cooked legumes, seitan, eggs. Gluten-free: use quinoa, rice, buckwheat instead of wheat. Ketogenic: replace starches with non-starchy vegetable stand-ins (cauliflower, broccoli, zucchini) and increase healthy fats. Allergies: adapt case by case, avoiding complex composite sauces.

Link with Daizu: the app generates a nutrition program compatible with a Sunday batch session (recombinable components, storage times respected), aggregates the grocery list by aisle, and adjusts portions to the number of people in the household. For people who already batch cook, that is time saved on organization and shopping; for beginners, a ready-to-use frame.