Quick answer: To make Dragon Shelter jam, select jam on the kitchen recipe board, press the berries, and bring the pot to the press to collect them. Add water and sugar, put the pot on the stove, add wood, and light it. Once the jam is cooked, transfer it to a jar and take it. Watch the cooking sequence and see the pot-and-press clarification.
Players also call this jam, jam cooking steps, or jam recipe order.
Jam cooking steps
Choose jam
Press and collect the berries
Prepare the mixture
Cook it
Jar the jam

If you cannot pick up the mashed berries, bring the pot to the press; the Steam reply says this is how to remove them. If the indicator is red from the start and the jar does nothing, check that the pot contains crushed berries, water, and sugar. One Steam player reported that the icon stayed red despite those steps; that case has no confirmed fix.
FAQ
Related
- How to Place the Kitchen Foundation — Set up the kitchen before using its cooking area.
- How to Move Kitchen Workstations and Baskets — Arrange the workstations used while cooking.
- How to Bake Berry Pie — Follow another berry recipe after making jam.