Cost per serving: why your grocery basket tells a different story

A recipe advertised at a few dollars per serving can lead to a different grocery bill. Often, the difference is quantity: you consume part of a product, but pay for the whole package.

Separate three measures when planning spending: the cost of the amount used, the price of the package purchased and the total weekly basket. All amounts below are fictional examples in Canadian dollars, not current offers.

100 g of pasta in the recipe, 500 g at checkout

Suppose a 500 g package costs $2.50. A recipe uses 100 g, so the pasta consumed costs $0.50. If you have none at home, you still need to spend $2.50 to make that meal.

The remaining 400 g can serve other meals. It is neither free nor automatically wasted. A per-serving calculation and a shopping budget answer different questions.

Two meals can share one package

Imagine one recipe needs 80 g of parmesan and another needs 70 g. A 175 g tub costs $3.40. Two shopping lists built separately from scratch might each include a tub, totalling $6.80.

A combined list adds the quantities first: 80 + 70 = 150 g. One tub covers both meals for $3.40, with 25 g left. The saving in this example comes from combining purchases. The tub’s price has not changed.

A deal can become worthwhile with the second meal

Consider beef sold by weight at $13.20/kg and, in this example only, a discounted 1 kg tray at $6.88. One meal needs 500 g:

• Buying by weight: 500 g costs $6.60.
• Buying the tray: you spend $6.88 and take home 1 kg.

For that meal alone, buying by weight takes less cash. If chili and tacos together need 1 kg, the $6.88 tray becomes cheaper than $13.20 bought by weight. The meal combination changes the useful purchase.

The Office of Consumer Affairs explains how a common unit, such as a kilogram, helps compare products. Then consider the quantity you need and the total amount you must pay to choose a suitable package.

What Aneth compares for your week

Aneth starts with your meal repertoire, combines ingredients across candidate meals and prices the corresponding formats. It looks for an affordable combination while also considering variety and meal rotation.

Discounts are used when available. Some lines rely on estimated prices, and a poorly matched ingredient needs checking. The result helps prepare your shopping; it does not guarantee the checkout total or the lowest price across the entire market.

For your next week, compare baskets that cover the same number of dinners and portions. Our budget meal planning guide helps you select those meals before shopping.