In the heavy-bottomed pot with diced strawberries, add sugar, lemon juice and give it a good stir until the berries are fully coated. Let it sit for about 5 minutes to enhance juiciness and flavors.
Place the pot over medium heat and bring the mixture to a boil, stirring frequently to prevent sticking. Once it boils, reduce the heat to low and let it simmer, uncovered, for about 15 - 20 minutes. Stir occasionally to prevent burning. The jam is ready when slightly thick and creamy.
After cooking, you can blend the mixture to get a creamier jam. Or leave some pieces of strawberries for more texture.
Once it reaches the desired consistency, remove strawberry jam from the heat and transfer into clean, sterilized jars while it is still hot. For complete canning directions, read details in the blog post up here.