01 -
Let the mixture cool off a bit before scooping it into your ready-to-go jars.
02 -
Turn up the heat a little. Keep cooking and give it a mix every few minutes. You’re looking for about 220°F (104°C). It’ll take you 25 to 30 minutes.
03 -
Grab a sturdy spoon or a potato masher. Press the berries down until things look mostly smooth.
04 -
Keep things on medium-high heat. Stir now and then. Your sugar needs to vanish and berries will start popping open.
05 -
Throw blackberries, chopped jalapenos, lemon juice, and sugar into a big pot. Give it a really good stir so it’s all mixed up.