The Grimoire: Excalibutter Roast Chicken
14 June 2026

The Grimoire: Excalibutter Roast Chicken
Butter up and baste your big birds.
A flavour concocted by a court mage for a legendary king's table, Excalibutter is the rub for the showpiece bird: the Sunday roast, the Christmas turkey, the chicken everyone's gathered to eat. Buttermilk-rich and gently spiced, it turns crisp skin into the best part of the meal.
What you'll need
- 1 large whole chicken (or turkey crown)
- 2 tbsp oil or softened butter
- Excalibutter, generously
- 1 kg potatoes, for the tray
The method
- Pat the bird really dry. Rub all over with oil or soft butter.
- Work Excalibutter into the skin and inside the cavity. Cover and refrigerate overnight for the best result, the skin dries and seasons right through.
- Bring it to room temperature, then sit it in a roasting tray with the potatoes tucked around it.
- Roast at 190°C fan until the juices run clear and the thickest part reaches 74°C internal (around 1 hr 20 for a medium chicken).
- Rest, covered, for 15 minutes. The potatoes will have drunk up every drop.
Sage's tips
- Spatchcock the bird for faster, more even cooking and even more crisp skin.
- One-tray feast: no need for separate roasties, the spuds cook in the seasoned juices.
Excalibutter — 70g · Mild · Butter up and baste your big birds! · Contains: Milk, Celery, Mustard. [Add to cauldron →]
