Start by preparing the seasoning mix. Melt the butter and mix it with the vinegar, dill, salt, garlic powder, onion powder, and citric acid (if using). Set aside for now.
Pour the avocado oil into a large pot, and add 2 to 3 individual popcorn kernels in a large pot. Turn on the heat to medium, cover with a slightly ajar lid, and wait for those kernels to pop.
When those kernels pop, add the rest of the popcorn kernels. Give the pot a little shake to spread the kernels around the oil. Place the lid back on again slightly ajar.
Wait for the kernels to pop, which should start happening fairly quickly. Continue cooking until the popping slows to a few seconds between each. Immediately remove from heat.
Pour the butter seasoning mix over the popcorn, stirring as you pour and continuing to stir after to coat all the popcorn.
Enjoy! Store leftover popcorn in an airtight bag on the counter. For best quality, eat within 2-3 days.
Notes
The citric acid helps add a sour tanginess to the popcorn that replicates that in a jar of pickles. You can still make this recipe without it, though, and it will still taste delicious.
This recipe makes around 12 cups of popped popcorn, give or take. It can vary by on a cup or so, as the exact number of popped kernels varies when you remove it from heat. The nutrition analysis below assumes 4 servings of about 3 cups popped popcorn each.
Nutrition analysis (approximate per serving): 191 calories, 13.5 g fat, 4.5 g saturated fat, 485 mg sodium, 16 g carbohydrate, 2.5 g fiber, 0.5 g sugar, 2.5 g protein, Vitamin D: 0%, Calcium: 1%, Iron: 5%, Potassium: 1%