Sports lodge café in Østmarka (the forest area east of Oslo).
Easy to reach by cross-country skiing (winter) or on foot/bicycle (summer) from Ellingsrudåsen or from Oppsal/Bøler/Skullerud.

Extended opening hours if skiing conditions are good: 10 am-9 pm on Tuesdays, Wednesdays and Thursdays.

Mariholtet is closed from 24 June-17 August, but the kiosk is open on Saturdays and Sundays.
The kiosk sells Norwegian sweet rolls, waffles, coffee, ice cream, chocolate etc.