To peel fresh tomatoes: bring a large saucepan of water to a full boil. Cut an "X" on the bottom of each tomato and cut out the core. Place the tomatoes, a couple at a time, in the boiling water for a few seconds. Transfer to a colander and cool. With your fingers, pull off skin and discard.
Cut the tomatoes in half and remove any bad or tough spots. Place tomatoes in the bowl of a food processor and pulse a few times to chop roughly. If you're using canned tomatoes, you can crush them by hand and remove any tough cores.
Place colander in sink and line with a large piece of muslin. Transfer tomatoes to prepared colander and let drain for about 45 minutes. After 45 minutes, squeeze out more liquid until tomatoes look somewhat dry.
Preheat oven to 350°F.
Transfer tomatoes to a bowl and combine with garlic, jalapeno, maple syrup, vinegar, olive oil, and hot sauce.
Spread mixture into an even layer on a rimmed baking sheet.
Bake 45 minutes, or until the tomatoes brown in a couple of places.
Stir tomatoes, taste, and add salt to taste.
Transfer to a clean jar and refrigerate.