Start by pressing the tuna dry. Use a fine mesh strainer and some paper towels to get rid of excess water—think of it as a spa day for your tuna. Transfer the now-relaxed tuna to a medium bowl and gently flake it with a fork until it’s nice and fine.

In a microwave-safe bowl, combine the minced onion and olive oil. Pop it in the microwave and cook for about 2 minutes, just until the onion starts to soften. Let it cool for about 5 minutes—this step gives the onions a mellow, sweet flavor.

Add the cooled onion mixture, fresh lemon juice, sugar, 1/2 teaspoon of salt, and 1/4 teaspoon of cracked black pepper to the tuna. Give it a good stir and let the whole thing rest for 10 minutes. Why the wait? This is where the flavors do their thing and make magic happen.

Now it’s time to bring it all together. Stir in the mayonnaise, parsley, and celery. Mix until everything is creamy and combined. Taste, then adjust with more salt and pepper if needed.