Prep the berries. Rinse the strawberries, pat them dry, and remove the green tops. Cut large berries into quarters and small ones in half. Aim for even pieces so they cook at the same rate.

Mac­erate with sugar. In a wide saucepan or skillet, combine strawberries with 1/2 cup sugar. Add 1 tablespoon fresh lemon juice, 1/2 teaspoon lemon zest, and a tiny pinch of salt. Stir and let sit for 10–15 minutes until the berries release their juices.

Start cooking. Set the pan over medium heat. As the mixture warms, stir gently and mash the berries a bit with a fork or potato masher. This helps create a jammy texture while leaving some chunks.

Simmer and reduce. Once it reaches a steady bubble, lower the heat to medium-low. Cook 12–18 minutes, stirring often. The jam will foam at first, then darken and thicken as the water evaporates. Skim excess foam if you like a clearer jam.

Check for set. Drag a spatula across the bottom of the pan. If the jam parts briefly and you can see the pan before it flows back, it’s close. Another test: spoon a little onto a chilled plate, wait 30 seconds, then push it with your finger. If it wrinkles slightly and holds a soft mound, it’s done.

Adjust sweetness and flavor. Taste. If you want it sweeter, sprinkle in another tablespoon or two of sugar and cook 1–2 minutes more. For depth, add a few drops of vanilla or a tiny splash (1/4 teaspoon) of balsamic vinegar. A crack of black pepper can make the strawberries pop.

Cool and store. Remove from heat. The jam will thicken more as it cools. Transfer to a clean glass jar, let it cool to room temperature, then cover and refrigerate.