Possible Clues:

• Very good quality desserts, perhaps, served up flambeed?
• Tree's condition round top of roots: excellent
• Prime
• Start off with a fire-screen of the highest quality
• Topping tipped over pastries, then put in to bake
• Stir after to be really excellent
• Start fire to be really excellent
• Well-done
• With passion, start playing in: very good
• Excellent mix after stir