Cut the tomatoes into a half.
Slice the onions into pieces of ¼″.
Divide the garlic into cloves.
Splash with Extra-virgin olive oil above the thyme.
Put all the vegetables on a baking pan.
Season everything with salt and pepper.
Add some drops of balsamic glaze to the tomatoes.
Put the pan in the preheated oven (at 360°F / 180°C) for 30-35 minutes.
Remove the pan from the oven, let the vegetables cool down for a while so you can work with them later.
Throw away the thyme because it already gave all the flavor to our vegetables.
Peel the tomatoes and the garlic.
Put all the tomatoes, garlic, and onions into a bowl together with the juice left by them.
Blend all the vegetables.
Add some vegetable broth until you will be happy with the consistency.
Enjoy your soup!