Ideal to add into roasted nutty notes, specifically hazelnut to tea and coffee flavors, 3-acetyl-2,5-dimethyl furan FCC (FEMA# 3391, CAS# 10599-70-9) has a sweet, nutty character with earthy undertones.
It also works well in other nutty flavors, such as almond and pistachio, and is great for enhancing chocolate and fudge formulations.