Add all ingredients to a medium saucepan and heat on medium for 5 minutes, stirring occasionally turn the temperature lower if it's starts to splatter out of the pan.

pour mixture through a strainer to remove any seeds or skin from tomatoes

Let it cool a few minutes

place a few paper towels in a strainer over a bowl and pour mixture into paper towels, the water will drop into the bowl

what is left in the paper towel is the ketchup, nice and thick and with less water

scoop out the ketchup and serve, or place in covered container and refrigerate