Homemade caramel corn has a nostalgic sweet-and-salty crunch and is made with simple pantry staples for a perfectly crisp, non-sticky treat that keeps fresh for weeks.
Place popped corn in a shallow baking pan in a 250 degree oven while making the caramel. (I divide the popped corn between two 9x13 pans, glass or metal work fine).
In a medium saucepan, mix together the brown sugar, corn syrup, butter, and salt.
Stirring constantly over medium heat, bring the mixture to a boil. Once it starts boiling (really boiling), stop stirring and set the timer for 5 minutes.
Remove from heat and stir in the vanilla extract and baking soda.
Divide the caramel between the two pans of popped corn and stir it to coat evenly.
Bake at 250°F for a total of one hour, stirring it every 15 minutes.
After one hour, remove the caramel corn from the oven and immediately dump it out onto the countertop (dump onto parchment paper for easy clean-up. Allow the caramel corn to cool, break it apart, and start eating!
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Notes
Pop your popcorn ahead of time, but take care not to burn it. You can't hide burnt popcorn even if your caramel is uber delish.
To get rid of the unpopped kernels, place the batch on a cooling rack above a baking sheet. The unpopped kernels should fall through the grate, but the popped kernels will remain on top.
If using microwaved popcorn make sure it's plain without any flavor. Not even butter!
You can make your own plain microwave popcorn by putting a couple tablespoons of popcorn kernels and a dash of vegetable oil into a brown paper lunch sack. Fold over the top and microwave until there are a couple seconds between pops. Repeat until you have 3 quarts of popped corn.
Keep an eye on your caramel as it boils and keep stirring. Burnt caramel is not a good time and a hassle to start over.
For maximum flavor, use brown sugar not white.
Store in an airtight container. Even a couple hours of exposure to the air can turn your caramel corn sticky and stale.