For great hummus, make a great tahini sauce, remove the chickpea skins, and blend it all up while the chickpeas are hot.
The Food Lab: Great Hummus and the Science of Smooth
Use evaporated milk and cornstarch to create smooth cheese dips that will stay emulsified, even at room temperature.
For Smooth, Stable Cheese Sauces, Cornstarch and Evaporated Milk Are Your Friends
A slow cooker is the ideal tool for keeping chili, sauces, and dips warm.