French Onion Soup Butter (Compound Butter)

A savory compound butter that captures the essence of French Onion Soup, perfect for spreading on crusty bread or topping a grilled steak.

Prep Time

15 minutes

Total Time

45 minutes

Calories

568 kcal

Difficulty

Easy

Equipment

2 items

Cost

£1.46/serving

Season:

☀️ Summer

Meal Type:

Soup•Bread

Cuisine:

French

Main Ingredient:

Beef

Cooking Style:

Grilling

Ingredients

Servings

2mediumYellow Onions(thinly sliced)

£0.60

1cupUnsalted Butter(softened at room temperature)

£2.20

2teaspoonsFresh Thyme(finely chopped)

£0.50

2tablespoonsOlive Oil

£0.30

0.5teaspoonSalt(or to taste)

£2.20

0.3teaspoonBlack Pepper(freshly ground)

£0.02

Total Cost

£5.82

£1.46 per serving

Instructions

1.
Heat olive oil in a skillet over medium-low heat. Add the sliced onions and cook slowly, stirring occasionally, until they are deeply caramelized and golden brown. This will take about 25-30 minutes. Be patient and don't rush the process.
2.
Remove the caramelized onions from the heat and let them cool slightly.
3.
In a medium bowl, combine the softened butter, cooled caramelized onions, chopped fresh thyme, salt, and pepper.
4.
Use a fork or spatula to thoroughly blend all the ingredients together until evenly distributed.
5.
Transfer the compound butter to a small serving dish or shape it into a log using plastic wrap. Refrigerate for at least 30 minutes to allow the flavors to meld and the butter to firm up slightly before serving.
6.
Serve with crusty bread, grilled steak, or your favorite accompaniments.

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My Notes

Nutrition Information

Nutrition per serving (60g)

568 kcal / 2378 kJ

Carbs

16.2g

6% of RDA

Fat

61.7g

88% of RDA

Protein

2.8g

6% of RDA

Detailed Breakdown

Fibre

2.3 g

8% of RDA

Sugar

8.9 g

10% of RDA

Sodium

300 mg

13% of RDA

Saturated Fat

38.5 g

193% of RDA

Chef's Tips

For a richer flavor, add a splash of balsamic vinegar to the onions during the last few minutes of caramelization.

The compound butter can be stored in the refrigerator for up to 1 week or frozen for up to 3 months.

If freezing, wrap tightly in plastic wrap and then in foil to prevent freezer burn.

Let the butter sit at room temperature for a few minutes before serving to soften it slightly.

Cooking Equipment

Stove

Small Bowl

Wine Pairings

No wine pairing suggestions available for this recipe.

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