Slow Roasted French Onion Soup

January 29, 2018

Food Facts | Soups, Stews, and Chili

Slow roasted French onion soup is a delicious, slow cooked bowl of caramelized onions in a savory rich stock. When topped with a toasted crouton and lots of melted cheese, it becomes a comfort food recipe like no other. This is the best French onion soup recipe I’ve ever made, and hands down, the best I’ve ever eaten!

This post originally appeared on November 11, 2012. The images have been updated, so it is being published again for all of my new readers!

Patience has never been my strong suit, especially where cooking and baking are concerned.

I distinctly remember the Christmas I received an Easy Bake Oven. Every little girl’s dream… baking up brownies via an incandescent light bulb. Learning with the Easy Bake Oven was the ONLY way that I would one day be as beautiful and talented as Miss Betty Crocker herself.

I recall stirring up the batter, pouring it into a “pan” no larger than the palm of my 7-year old hand, slipping it under the bulb…and then the waiting commenced. I just knew in my brownie lusting heart that I would receive the luxuries of my labor soon enough. So I waited…and waited…and flipped on a Donny & Marie 45 to while away the time. Then I TRIED to wait some more, but who was I kidding? I squished my hand through the back end of the machine, just far enough in to burn my fingertips on that damned 100 watt bulb. I pulled the pan of brownies out of the oven, grabbed at it with my skinny little fingers and burned my tongue as I tossed the gooey, under cooked batter down my hatch. Ah, memories.

Decades later, here I am, still suffering from Want-It-Nowitis. Even though I have the talent and supplies necessary to make a pan of brownies from scratch (and darned tasty ones at that!), I’ve been known to buy a boxed mix now and then *gasp*.I do it for no reason other than the reduced time it takes to prepare, bake, and be able to eat said brownies. Short cuts for the win. MOST of the time.

How to Make Slow Roasted French Onion Soup

French onion soup is one dish, however, that I’ve learned NEVER to cut corners on where time is concerned. Slow roasted French onion soup involves a pot full of caramelized onions, and caramelizing onions takes time. In other words, this is not a quick French onion soup recipe. But it is a delicious French onion soup recipe!

What is Caramelization?

Scientifically speaking, caramelization is the process whereby certain foods are transformed on a molecular level to remove the water, (usually by evaporation) leaving nothing but sweet goodness and a darkened color behind. Caramelization is why cookies get brown in the oven, and it’s also what transforms ordinary onions into a pot of delicious, homemade French onion soup!

white onions BEFORE carameliztion

white onions AFTER caramelization

PLEASE don’t give me that sad face. I realize that the pot looks a bit like a slimy mess of worms, but the taste is anything but slimy. Caramelized onions are out of this world good! I have the ticket to take them to the top level of goodness. When you add caramelized onions, some wine, seasoned stock, mushrooms, and a few spices together, it’s a good thing. Then you add a crispy crouton and melted cheese to the top and you’ve got yourself one great thing! A yummi bowl of slow roasted French onion soup comfort, my friend!

Let’s head into the kitchen and I’ll show you why patience is a virtue worth practicing!

Slow Roasted French Onion Soup Recipe Notes:

  • If you want to keep the fat and calories low in this recipe, use LOW FAT cheese and LOW SODIUM broth.
  • Weight Watchers Freestyle Smart Points: Based on the ingredients noted in the recipe, one cup of soup without the cheese and crouton has 3 Weight Watchers Smart Points (based on the Freestyle program). If you add one ounce of cheese and 1/2 inch slice of baguette to the top, you will need to add an addition 9 points, bringing the total to 12 Smart Points per cup! Yikes!

Slow Roasted French Onion Soup

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Prep Time 15 min Cook Time 2 hr Yields 6 cups

The onions in this soup are the secret to its rich taste. They're slowly caramelized in a Dutch oven over several hours, leaving the soup flavorful, filling, and perfect for a chilly night warm up!

Ingredients

For the Soup:

  • 3 tablespoons unsalted butter, cut into 3 pieces
  • 6 large yellow onions (about 4 pounds), halved pole to pole & cut into 1/4-inch thick slices
  • Kosher salt, to taste
  • 2 cups water, plus extra for deglazing
  • 1/2 cup dry sherry
  • 4 cups low-sodium chicken broth
  • 2 cups beef broth
  • 2 teaspoons dried thyme leaves or 6 sprigs fresh (tied with kitchen string)
  • 1 cinnamon stick
  • 1 bay leaf
  • Ground black pepper, to taste

Cheese Croutons:

  • French baguette, cut into 1/2-inch slices
  • 2 1/2 cups shredded Gruyère cheese (about 12 ounces)

Directions

For the soup:

  1. Adjust oven rack to lower-middle position and heat oven to 400 degrees. Generously spray inside of heavy-bottomed large (at least 7-quart) Dutch oven with nonstick cooking spray. Place butter in pot and add onions and 1 teaspoon salt. Cook, covered, 1 hour (onions will be moist and slightly reduced in volume).
  2. Remove pot from oven and stir onions, scraping bottom and sides of pot. Return pot to oven with lid slightly ajar and continue to cook until onions are very soft and golden brown, 1 to 1.5 hours longer, stirring onions and scraping bottom and sides of pot after 45 minutes.
  3. Carefully remove pot from oven and place over medium-high heat. Using oven mitts to handle pot, cook onions, stirring frequently and scraping bottom and sides of pot, until liquid evaporates and onions brown, 15 to 20 minutes, reducing heat to medium if onions are browning too quickly. Continue to cook, stirring frequently, until pot bottom is coated with dark crust, 6 to 8 minutes, adjusting heat as necessary. Scrape any brown bits (fond) that collects on spoon back into onions.
  4. Stir in 1/4 cup water, scraping bottom of pot to loosen crust, and cook until water evaporates and bottom of pot has formed another dark crust, 6 to 8 minutes. Repeat process of deglazing 2 more times, or until onions are very dark brown. Stir in sherry and cook, stirring frequently, until sherry evaporates, about 5 minutes.
  5. Stir in broths, 2 cups water, thyme, cinnamon stick, bay leaf, and 1/2 teaspoon salt, scraping up any final bits of browned crust on bottom and sides of pot. Increase heat to high and bring to simmer. Reduce heat to low, cover, and simmer 30 minutes. Remove and discard herbs, then season with salt and pepper

Make the Croutons:

  1. While soup simmers, arrange baguette slices in single layer on baking sheet and bake in 400-degree oven until bread is dry, crisp, and golden at edges, about 10 minutes. Set aside.

To Serve:

  1. Adjust oven rack 6 inches from broiler element and preheat broiler.
  2. Set individual broiler-safe crocks on baking sheet and fill each almost to the brim with soup. Top each bowl with 1 or 2 baguette slices (do not overlap slices) and sprinkle evenly with Gruyère. Broil until cheese is melted and bubbly around edges, 3 to 5 minutes. Let cool 5 minutes before serving.

Recipe Notes

Weight Watchers Smart Points (based on Freestyle program) per 1 cup = 12 with cheese crouton or 3 without cheese crouton

Adapted from Cooks Illustrated "Perfect French Onion Soup"

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Recipe Twists on Slow Roasted French Onion Soup:

If you want to take your French onion soup to the next level, check out these two recipes from Brianne at Cupcakes and Kale Chips:

French Onion Soup au Gratin Stuffed Meatballs

French Onion Soup Stuffed Burgers

Or head over to Stephanie’s site for some Hot French Onion Soup Dip, or Tanya’s site for her French Onion Skillet Beef Casserole recipe.

For kicks and giggles ( a lot of giggles), here are the original photos of my slow roasted French onion soup. These were taken in November of 2012, with my old point and shoot camera. Now that I own a big girl

Nikon DSLR camera , I think my food photos look much more appetizing. What d o you think??

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AFTER:

  • cheese
  • onions
  • soup recipes

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Slow Roasted French Onion Soup Slow Roasted French Onion Soup Reviewed by Cake Lover on January 29, 2018 Rating: 5
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