Mary’s Popcorn is a beloved snack shop in Quebec City, known for its perfectly crunchy, glossy popcorn coated in a rich, buttery caramel that balances sweet and salty in every bite. This recipe recreates that iconic Quebecois treat at home, using a simple stovetop method that yields a sturdy, crackly coating without any complicated candy thermometers. The key is cooking the caramel to the right stage and working quickly to coat the popcorn evenly, giving you a batch that tastes just like the famous shop’s version.
Ingredients
- 1/2 cup (120 ml) popcorn kernels (about 10 cups / 80 g popped)
- 1/2 cup (115 g) unsalted butter, plus more for greasing
- 1 cup (200 g) packed light brown sugar
- 1/2 cup (170 g) light corn syrup (or honey, see Tips)
- 1/2 teaspoon (3 g) fine sea salt, plus more for sprinkling
- 1/2 teaspoon (2.5 ml) vanilla extract
- 1/4 teaspoon (1.5 g) baking soda
Instructions
- Pop the popcorn using your preferred method (air-popper or stovetop). You should have about 10 cups (80 g) of popped popcorn. Remove any unpopped kernels and place the popcorn in a very large bowl. Grease a large rimmed baking sheet with butter and set aside.
- In a medium heavy-bottomed saucepan, combine the butter, brown sugar, corn syrup, and salt. Place over medium heat and stir until the butter is melted and the sugar is dissolved, about 2 minutes.
- Increase the heat to medium-high and bring the mixture to a rolling boil. Insert a candy thermometer if you have one. Boil without stirring for 4–5 minutes, until the mixture reaches 235°F (113°C) – the soft-ball stage. If you don’t have a thermometer, drop a small amount into cold water; it should form a soft, pliable ball.
- Remove the saucepan from the heat and quickly stir in the vanilla and baking soda. The mixture will foam up – that’s fine. Stir just until combined.
- Immediately pour the hot caramel over the popcorn. Using a silicone spatula or two wooden spoons, toss the popcorn gently but thoroughly until every kernel is coated. Work quickly before the caramel sets.
- Spread the coated popcorn onto the prepared baking sheet in an even layer. Sprinkle with a pinch of flaky sea salt if desired. Let cool completely, about 10–15 minutes, until the caramel hardens and turns crunchy.
- Once cool, break into clusters and serve. Store any leftovers in an airtight container.
Tips
- Use fresh popcorn: Stale popcorn absorbs moisture and becomes chewy. Pop your kernels fresh for the crispiest result. If using pre-popped, make sure it’s very dry.
- Work fast: The caramel sets quickly once it cools. Have your popcorn and baking sheet ready before you start cooking the caramel. If the caramel hardens in the bowl, reheat it gently over low heat for a few seconds to loosen it.
- Don’t skip the baking soda: It reacts with the acid in the brown sugar and creates tiny air bubbles, making the caramel light and crisp rather than dense and glassy.
- Substitute corn syrup: If you prefer not to use corn syrup, you can substitute an equal amount of honey or maple syrup. The texture will be slightly less crunchy and more chewy, but still delicious.
Serving Suggestions
Serve Mary’s-style popcorn as a snack at parties, movie nights, or as a sweet treat with coffee or tea. It also makes a great gift – package it in cellophane bags tied with ribbon. For a decadent dessert, use it to top vanilla ice cream or yogurt.
Variations
- Chocolate Drizzle: After the popcorn has cooled, drizzle with melted dark or white chocolate and let set.
- Spicy Kick: Add 1/4 teaspoon of cayenne pepper to the caramel along with the salt for a sweet-heat combo.
- Nutty Crunch: Add 1 cup (120 g) of roasted peanuts or pecans to the popcorn before pouring the caramel.
- Maple Twist: Replace the corn syrup with the same amount of pure maple syrup and reduce the brown sugar to 3/4 cup (150 g) for a distinctly Canadian flavor.
Storage and Reheating
Store the popcorn in an airtight container at room temperature for up to 1 week. Do not refrigerate, as moisture will make it soggy. If it loses its crunch, spread it on a baking sheet and warm in a 250°F (120°C) oven for 5–10 minutes, then cool completely before serving again.
Frequently Asked Questions
Can I use microwave popcorn? Yes, but choose plain or lightly salted varieties. Avoid butter-flavored ones, as the extra oil can make the caramel greasy.
Why is my caramel not crunchy? The most common reason is undercooking. Make sure the caramel reaches 235°F (113°C) – if it doesn’t get hot enough, it will remain sticky. Also, ensure the popcorn is completely dry before coating.
Can I make this in the oven instead of stovetop? Yes, you can bake the coated popcorn at 250°F (120°C) for 45 minutes, stirring every 15 minutes, to dry it out further. This yields an even crunchier result but is not necessary.
Is this gluten-free? Yes, all the ingredients are naturally gluten-free. Just double-check your vanilla extract and baking soda labels.
Can I use white sugar instead of brown? Yes, but the flavor will be less rich and more like classic caramel. Use 1 cup (200 g) of granulated sugar and reduce the corn syrup to 1/3 cup (113 g) to avoid excessive sweetness.
How do I prevent the popcorn from getting soggy? Make sure the popcorn is fully cooled before storing, and keep the container tightly sealed. Adding a silica gel packet (food-safe) can help absorb moisture, but it’s not essential.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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