Maple-Thyme Caramelized Onion Jam

Name: Maple-Thyme Caramelized Onion Jam
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Yield: 2 cups
Ingredients: 4 large onions, thinly sliced; 1/2 cup maple syrup; 2 tablespoons olive oil; 1 teaspoon fresh thyme leaves; 1 tablespoon balsamic vinegar; Salt, to taste

Highlighted under: Simple & Tasty Meals

I absolutely love making this Maple-Thyme Caramelized Onion Jam. The blend of sweet maple and aromatic thyme transforms simple onions into a deliciously complex spread. It’s perfect for elevating cheeses on a charcuterie board or dolloping on warm biscuits. The slow carameling process allows the natural sugars of the onions to develop beautifully, creating a jam that is both sweet and savory. After making this a few times, I've discovered that a good pinch of salt at the end truly enhances the flavors. You won’t regret giving this a try!

Created by

Lena

Last updated on 2026-01-17T17:06:27.766Z

When I first decided to make Maple-Thyme Caramelized Onion Jam, I was looking for a unique condiment to impress my friends at a dinner party. The combination of maple syrup and thyme intrigued me, and I was curious to see how it would enhance the basic caramelized onions. After a few trials, I found that a low and slow cooking method brings out the best in the onions and the flavors.

What really sets this recipe apart is the careful balancing of sweet and savory. I learned that adding a touch of balsamic vinegar at the end can deepen the flavor profile even more. Each time I make this jam, it brings rave reviews, and it's become a must-have item in my kitchen.

        Why You'll Love This Recipe
        The sweet touch of maple syrup perfectly complements the earthy thyme.
A unique twist on classic onion jam that will surprise your palate.
Versatile as a spread, dip, or a topping for various dishes.

      

Understanding the Ingredients

The main ingredient in this jam, onions, is crucial for achieving that sweet and savory balance. Use large yellow onions for their natural sweetness and rich flavor, as they caramelize beautifully. Avoid using red onions, as they can turn bitter during the cooking process. If you're out of thyme, fresh rosemary or even sage can make an excellent substitute, giving the jam a different yet delightful herbal profile.

Maple syrup is not just a sweetener here; it also contributes depth to the flavor. Choose a quality pure maple syrup for the best results, as imitation syrups can taste overly sweet and artificial. The balsamic vinegar adds acidity, which helps to prevent the jam from becoming overly sweet, so don’t skip it! A good quality balsamic will enhance the complexity of flavors beautifully.

Perfecting the Cooking Technique

Caramelization is the key to developing the rich flavor of this jam. Keep the heat low during the caramelizing phase, as high heat can quickly burn the onions rather than slowly drawing out their natural sugars. Stir the onions frequently to ensure even cooking and prevent any sticking. You're aiming for a deep golden-brown color, which might take longer than you expect—patience is essential here, around 20 to 30 minutes on low heat.

If you notice the onions starting to stick, add a teaspoon of water to deglaze the pan—this will lift the sticky bits off the bottom and incorporate them back into the mix. This method not only enhances flavor but also adds a silky texture to your jam as it thickens. Remember, the onions will reduce quite a bit during cooking, so use a wide skillet to maximize surface area, which will help with evaporation.

Ingredients

Main Ingredients

4 large onions, thinly sliced
1/2 cup maple syrup
2 tablespoons olive oil
1 teaspoon fresh thyme leaves
1 tablespoon balsamic vinegar
Salt, to taste

Instructions

Prepare the Onions

In a large skillet, heat the olive oil over medium heat. Add the sliced onions and a pinch of salt. Cook, stirring occasionally, until the onions are softened and translucent, about 10 minutes.

Caramelize the Onions

Reduce the heat to low and continue to cook the onions for an additional 20 minutes, stirring frequently, until they are richly caramelized and deep brown.

Add Maple and Thyme

Stir in the maple syrup and thyme, cooking for another 5 minutes until thickened. Add the balsamic vinegar, stirring well to combine.

Cool and Store

Remove from heat and let it cool slightly. Transfer to a clean jar and refrigerate. Enjoy your jam within a week for the best flavor.

Pro Tips

For a richer flavor, use a mix of yellow and red onions. Adjust the maple syrup based on your sweetness preference.

Storage Tips

Once cooled, transfer your Maple-Thyme Caramelized Onion Jam into an airtight container and refrigerate. It can last up to a week, but the flavors will peak within the first few days. The jam thickens as it cools, making it easier to spread. To refresh the jam, give it a quick stir before serving. If you're planning to use it later, consider portioning it out into smaller jars for easy access and to minimize exposure to air.

For longer storage, this jam can be frozen. Portion it into freezer-safe containers, leaving space at the top for expansion. When ready to use, thaw it in the refrigerator overnight or warm it gently in a saucepan on low heat. This jam is versatile enough to complement a variety of dishes beyond just the charcuterie board; think savory pastries, meat glazes, or even toppings for roasted vegetables.

Serving Suggestions

This Maple-Thyme Caramelized Onion Jam makes a fabulous addition to cheese boards, pairing particularly well with brie, goat cheese, or sharp cheddar. Spread it on warm biscuits or scones for a delightful breakfast treat, or use it as a topping for grilled meats, where it adds a sweet and herbal glaze.

For a unique twist, try mixing this jam into vinaigrettes for salads or as a filling for savory tarts. Its complex flavor profile can elevate everything from simple snacks to gourmet entrees, so don't hesitate to get creative with it in your kitchen!

Questions About Recipes

→ How long does the caramelized onion jam last?

It can last up to one week in the refrigerator when stored in an airtight container.

→ Can I freeze the onion jam?

Yes, you can freeze it for up to three months. Thaw in the refrigerator before use.

→ What can I use this jam for?

It’s delicious on crackers, with cheese, on burgers, or even as a glaze for roasted meats.

→ Is there a substitute for maple syrup?

You can use honey or agave syrup as a substitute, but it will alter the flavor profile slightly.