60000 for a snack does sound like quite a lot although your snacks are much larger than mine. There's a maximum recommended daily dose for Creon so if it was me I'd be talking to my doctor/health professional.
My snacks (not all at once): a banana, 25g nuts, handful sultanas, pork crackling/rind, blueberries or strawberries if in season, 2 pieces of dark chocolate, a protein bar. Stuff like that. No where near 250 kcal (more likely less than 100 kcal) but I'm not trying to gain weight. I don't take creon with my snacks although my specialist said something like "maybe take one or two". Too vague for me so I just don't, although I would take maybe 25000 if it was a really big snack. For comparison I take 3 creon (75000 units) with dinner which is usually about 500-600 kcal. I really think you need to ask your doctor...