โญ Margarine (Best Dairy-Free Option)
1:1 (1 cup margarine per 1 cup butter)Margarine is made from vegetable oils and designed to mimic butter's physical properties, including fat content and water percentage. This similarity allows muffins to retain their tender crumb and moistness, as margarine emulsifies well with other ingredients.
For best results, use stick margarine rather than tub margarine, as the latter contains more water and can alter texture. Ensure margarine is at room temperature for easier creaming with sugar.
Muffins made with margarine will have a slightly different flavor profile, often less rich and buttery, but the texture remains largely unaffected, making it the closest practical substitute.