Name: Onion Date Jam Tart with Blue Cheese
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Ingredients: 1/4 Cup (50g) Olive Oil; 4 Cups (568g/about 2 medium onions) Sweet, White or Yellow Onions, diced; 1 Cup (132g before pitted/122g after pitted) D'vash Organics Khalas Dates; 1/2 Tsp Salt, more if needed; 5 or 6 Sprigs (7g) Fresh Thyme; 1 1/2 Tbsp D'vash Organics Date Syrup; 2 Tbsp Water; 3 to 4 Tbsp Red Wine Vinegar; 2 Sheets Puff Pastry, thawed in the fridge overnight; 4 to 5 oz Blue Cheese, crumbled; Prepared Onion Date Jam; 1 Large Egg (egg wash); Blue Cheese Crumbles; Walnuts; Arugula; D'vash Date Syrup

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The most incredible Onion Date Jam and Blue Cheese Tart baked in puff pastry and topped with baby arugula, walnuts and a drizzle of date syrup!

Today's post is sponsored by D’vash Organics however, all thoughts and opinions are my own. Thank you for supporting the brands that make Short Stack Kitchen possible!

ABOUT D’VASH ORGANICS

D’vash, which means “honey” in Hebrew, is a company that was established in 2016. D’vash products are sold in 9,500 stores nationwide, including Whole Foods Market, Costco, Sam’s Club, Walmart, Sprouts Farmers Market, CVS and Safeway. In addition to date syrup, the company also makes date sugar, date energy bars and superfood bites.

The star of this savory tart is definitely the Onion Date Jam! Sweet onions, D'vash Organics Khalas Dates, and fresh thyme are caramelized and cooked down into a delicious thick jam. Not only is the jam amazing in this tart, you can also enjoy it as part of a cheese board, baked with brie, on a burger, in a grilled cheese and so much more!

Ingredient Notes

Onion Date Jam

Onions - I used sweet onion, but you can use yellow or white onions.
D’vash Khalas Dates – Khalas dates boast a buttery-caramel flavor.
Olive Oil
Fresh Thyme - Add SO much flavor. You can also use Oregano Or Rosemary.
Salt - Balances the sweetness.
Date Syrup D’vash Date Syrup – Not only does it have a lovely molasses-like flavor, it will also help the onions and dates caramelize.
Water
Red Wine Vinegar - Helps balances the sweetness in the jam. You can also use Balsamic Vinegar.

Tart

Puff Pastry - I used Pepperidge Farm's puff pastry, but you can use your favorite.
Prepared Onion Date Jam
Blue Cheese - Blue cheese and dates compliment one another perfectly. You can also use Gorgonzola, Brie or Gruyere cheese.
Egg - We'll be making an egg wash to help the tart brown.

Instructions

Step 1 - Make your Onion Date Jam - Add olive oil, onions, dates, fresh thyme and salt to a large skillet and cook over medium heat until the onions and dates soften, about 10 to 15 minutes. Remember to stir periodically so your onions do not burn.

Step 2 - Add date syrup and water and cook for an additional 5 minutes or until the jam becomes a deep dark color and the mixture thickens. Add red wine vinegar and cook for an additional 2 minutes. At this point you can adjust your seasoning to your liking, by adding more salt or vinegar.

Step 3 - Remove and discard the thyme sprigs. If you'll be using it right away, transfer to a bowl and leave on the counter to cool down. If you'll be using it later on, transfer to an airtight jar/container and store in the fridge for up to 1 week.

Step 4 - Assemble your tarts - Unfold or unroll your thawed puff pastry (mine came with 2 sheets). You can make 2 large tarts, create little individual tarts or make a bunch of mini tarts. It's up to you! I ended up making 4 (5-inch/12 cm) individual round tarts with one sheet and 1 large (9-inch/22 cm) round tart with the second sheet. Transfer the puff pastry to 2 parchment lined baking pans, making sure they are at least 2 inches apart. Using a small paring knife, score a small border along the edge of your tarts, making sure not to cut through. Next, randomly pierce the bottom of each tart with a fork. See photos below for reference.

Step 5 - Make an egg wash by whisking, 1 egg and 1 tablespoon of water together. Brush the border of each tart with the egg wash.

Step 6 - Spoon your prepared Onion Date Jam onto your tarts, making sure to leave the border jam-free. Depending on how large your tart is, spread a few tablespoons of the jam onto the tart. I ended up putting 3 tablespoons for my little 5-inch tarts. If you're making 2 large tarts, divide the jam in half and spread evenly to each one. Crumble some blue cheese on top. Keep in mind that you'll be garnishing with extra blue cheese right before serving.

Step 7 - Pop the tarts in the freezer for 15 minutes to firm up. While the tarts are chilling, preheat the oven to 400ºF (205ºC). Then bake for about 15 to 20 minutes or until the tarts are golden brown.

Step 8 - To serve, garnish with more blue cheese crumbles, arugula, walnuts and a drizzle of date syrup. Enjoy!

Tips for Success!

Thaw your puff pastry the night before - Thaw the puff pastry by placing the package in the fridge overnight. When you are ready to use, simply remove the sheets from its package and unfold/unroll. If it's hard to unfold/unroll, leave on the counter for 10 minutes. I find that when I use Pepperidge Farm brand, I don't need to thaw at room temperature. The all butter puff pastry may need extra time on the counter though.

After assembling the tarts, place it in the freezer - This will ensure a flaky tart! 15 minutes will do.

Make the Onion Date Jam ahead - If you like planning ahead, make the jam the night before and store in the fridge in an airtight container. It will keep for about a week.

Use cookie cutters or a plate to cut out your tarts - I used a cookie cutter to cut out the smaller tarts. For the larger tart, I placed a 9-inch plate on top of the puff pastry and cut around the plate.

Don't forget to score the edge of the tart and pierce with a fork - This allows the steam to escape when it bakes and keeps it flat.

Don't skip the egg wash - This will give the puff pastry that beautiful golden brown color!

For more delicious Savory Recipes, check out my:

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