β Coconut Oil (Best Dairy-Free Option)
1:1 (1 tablespoon coconut oil per 1 tablespoon butter)Coconut oil is a saturated fat similar in melting point and texture to butter, which helps replicate the creamy mouthfeel butter provides in oatmeal. Its fat content coats the oats, improving flavor release and smoothness.
For best results, use refined coconut oil if you want a neutral flavor; unrefined will add a coconut note. Melt before mixing to ensure even distribution.
Compared to butter, coconut oil may impart a slight coconut flavor but maintains the richness and creaminess expected in oatmeal, making it a highly effective substitute.