Set your grill or oven on high heat
Place a heavy cast iron pan in the grill/oven until the pan is hot, about 5 minutes
Clean cherry tomatoes and put them in a large bowl
Drizzle the tomatoes with enough olive oil to coat
Sprinkle with sea salt and herbs
Add garlic
Add tomato mixture into pan, place back in oven/grill
Roast until they begin to char slightly and start to burst, about 10-15 minutes
Take them off the heat, pour into a bowl and lightly mix. You can leave as is, or crush with a spoon and make it into more of a sauce
Once cooled, pour the sauce into jars. If freezing, you can also store in a freezer bag.