
3 pounds Roma and/or vine-ripened tomatoes, cut in half
4 tablespoons olive oil, divided
⅛ teaspoon salt, plus additional salt to taste
⅛ teaspoon freshly ground black pepper, plus additional pepper to taste
1½ cups rough-chopped yellow onions
5 cloves garlic, sliced
5 sprigs fresh thyme
1½ cups vegetable broth
2 tablespoons tomato paste
1 (14.5-ounce) can fire-roasted diced tomatoes, undrained
Heavy whipping cream, for garnish