First, place the carrots, onions, and garlic on a sheet pan.
Next, add the olive oil, salt, pepper, thyme, garlic powder, oregano, and red pepper flakes to the veggies. Mix all together and spread out the veggies so it roast instead of steams.
Now, place on top rack of oven and cook for 20-25 minutes.
Next, place veggies in the blender or food processor and pulse to blend veggies. Be careful and covering openings so hot veggies don't splatter on you. Then slowly add broth as you blend. I like mine chunky but blend until consistency you want.
Finally, taste for more slat or pepper if needed and enjoy!