The easiest way I know how to make a tart or pie crust is in a food processor. You literally dump everything in it and pulse it until it’s combined. It usually mixes in everything so well that there really isn’t a need to freeze it, but if that’s just in your nature then go ahead! The next thing to do is to roll it out. I recommend going until it’s about an 1/8” thick, anything thicker and you’re eating pizza and anything thinner and it can burn up too easy and get overly crisp.