How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Vegetarian "Classic" Onion Soup ?

You need 12 ingredients. The key ingredients include: 2 tbs margarine or butter, 2 tbs olive oil, 4 large Spanish or yellow onions (vidalia...mmmm), halved and thinly sliced, 2 cups water, and more.

Is Vegetarian "Classic" Onion Soup suitable as soups & stews?

Yes, Vegetarian "Classic" Onion Soup falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Vegetarian "Classic" Onion Soup ?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Vegetarian "Classic" Onion Soup Recipe

Name: Vegetarian "Classic" Onion Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 tbs margarine or butter; 2 tbs olive oil; 4 large Spanish or yellow onions (vidalia...mmmm), halved and thinly sliced; 2 cups water; 1 quart vegetable stock; 1 bay leaf; 1/4 cup sherry; 1/2 tsp salt (omit if broth is salty); 1 tsp fresh thyme (or 1/2 tsp dried); 1/2 tsp black pepper; 6-10 slices french bread, sliced about 1 inch thick and lightly toasted; 6-10 tbs crumbled goat cheese (feta or chevre) or to taste (I love LOTS of cheese!)

Warm up with this hearty Vegetarian "Classic" Onion Soup recipe. Made with margarine, olive oil, onions and water. Easy step-by-step instructions included.

This Vegetarian "Classic" Onion Soup relies on simple, everyday ingredients such as tbs margarine or butter, tbs olive oil, water and quart vegetable stock. It comes together quickly and makes 4 servings, at about 1446 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

1446

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Vegetarian "Classic" Onion Soup

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions