Wash and peel your tomatoes and set them aside. See steps above on a quick way to do this.
Prepare your jars, lids, rings and canner. If you are new to water bath canning, or it has been a while, be sure to refresh your skills from a reliable and official source to guide you through this process. My tips and tricks can be found here
In the bottom of each quart jar put 1/2 tsp citric acid (or 2 tablespoons bottled lemon juice). If you are using pint jars, put 1/4 teaspoon citric acid (or 1 tablespoon bottled lemon juice). Fill your hot jars with the tomatoes, pressing them in firmly, leaving 1/2 inch headspace. Remove any bubbles and adjust the headspace one last time.