NYT Cooking - iPhone app with 17,000 free recipes from The New York Times
Food 52 - Social network for foodies.
SuperCook - Find recipes for ingredients you already have.
munchlab - Get recipes based on ingredients you have at home
Tasty - Tasty is a free to use mobile application that acts as your cooking coach.
Plant Jammer - Reduce food waste and save money - cook with what you got!