Wash and clean strawberries. Cut off the stems and then dice strawberries into small cubes.

Add a little over half of the diced strawberries into a saucepan with 2 tbsp of sugar (more if your strawberries aren't sweet or you want your jam sweeter).

Turn the heat onto medium and start smashing the strawberries with a fork.

Bring to a gentle boil while stirring and smashing. You still want it a bit chunky.

Let the strawberries simmer for about 1-2 minutes. Remove from heat and let cool down completely.

Once the strawberries are cooled, add a couple scoops to the bottom of your glass.

Top the strawberry jam with ice, oat milk, and then the remaining diced strawberries.