Never let a runny tomato sauce ruin your day again. AllRecipes / Ana Cadena Tomato sauce is an invaluable ingredient in the kitchen. I don’t know what I would do without it. It's something I love to ...

While flour is a great way thicken sauce (it acts by binding liquid with starch molecules) you can't just simply stir it in without ending up with a clumpy mess. Here are a few options to avoid the ...