Here’s the simple math for you. For a 2kg crown at 190°C: Absolutely 80 minutes in the oven. Check it at 70 minutes. Use the probe. If the probe reads 68°C, it’s almost there. Wait another 10-15 minutes. Never trust a timer alone. Trust the probe. The probe is your friend. The probe will save Christmas.
If you’re cooking a massive 4kg crown (feeding a small army of hungry relatives), that’s 160 minutes. Or roughly the length of a bad movie. Check at 150 minutes. The point is: start checking early. Burnt turkey is a tragedy. Burnt relationships from burnt turkey is a catastrophe.
So, to answer the question honestly: It takes anywhere from 70 minutes to 3 hours, depending on the size of your crown. But really, it takes exactly as long as it takes for the centre to hit 72°C. That’s the only clock that matters. Now go forth, probe in hand, and roast with confidence. You’ve got this.
