SuperCook

SuperCook works the other way round from a recipe site. You build a list of what's in your kitchen, and it searches recipes from cooking sites for dishes you can make with those ingredients, or with only one or two more.

That makes it useful at the end of the week, when you have half a bag of spinach and some eggs and no plan. Because the results are recipes published by other sites, you click through to the original page for the method and timings.

It is a search tool, so the quality of each recipe depends on the site it comes from. Read the source page before you cook, and check the ingredient list if you're cooking for someone with an allergy.