01 -
Set the oven temperature to 450°F and lightly coat your big baking sheet with oil.
02 -
In a big mixing bowl, toss together chopped tomatoes, onions, and garlic with salt, olive oil, and pepper. Make sure everything’s coated well.
03 -
Spread the veggie mix on your prepared baking sheet. Roast for 15 minutes, stir them up, and roast again for 15 more minutes. For extra flavor, broil for the last 3 minutes to add a slight char to the tomatoes.
04 -
Dump the roasted veggies into a strong blender along with any juices from the pan. Throw in your fresh basil and blend on high for about 50 seconds or until totally smooth.
05 -
Over medium heat, melt the butter in a large pot. Whisk in the flour and stir constantly until it turns golden, about 30 to 60 seconds.
06 -
Pour in the veggie stock and sugar, stirring constantly. Add the pureed tomatoes and mix everything together. Keep it cooking over medium-low heat for 15 minutes, and don’t forget to season more if needed. Want it creamier? Stir in some heavy cream at the end.