I use Google as my main search engine. I like the simplicity, and the categories you can search. I noticed something new today while looking for a pumpkin muffin recipe. Check it out:
You can select which ingredients you want to use from a list on the left-hand side! You can decide if you want a specific ingrredient to be included in the recipe you're searching for, or if you want one to be ommitted. It's awesome! Since I'm lazy today and wanted to use one of my yellow cake mixes, I selected that.
Thought you'd enjoy this little tip. Have a great day!