I have often interchanged 'fats' when baking depending on what I had on hand. Sometimes it slightly changed the texture of the final product, but sometimes it didn't. Butter has a higher level of saturated fat so vegetable oil would be lighter, but I've never had a problem by substituting one for the other.
I'm not sure it's necessary, but when I've made this substitution I've always melted the butter before measuring. (Be sure to let it cool slightly before adding to batter so that it doesn't scramble the egg(s).)
In cooking butter can be used for vegetable oil, but it cannot be substituted in baking.
A suitable butter substitute for vegetable oil in baking recipes is margarine.
A suitable substitute for vegetable oil when baking that can be replaced with butter is margarine.
A suitable substitute for vegetable oil when baking is to use butter instead.
A suitable substitute for butter when baking is margarine, coconut oil, or vegetable oil.
Butter or margarine can be a suitable substitute for vegetable shortening in baking recipes.
= Butter, Substitutes = Unsalted butter can be substituted for regular butter in any recipe. It is NOT necessary to add salt. Margarine can also be substituted for butter. Do NOT use lowfat spreads or light butter for baking.
A suitable substitute for butter in baking recipes that call for non-hydrogenated vegetable shortening is coconut oil.
A suitable replacement for vegetable shortening in baking recipes is butter, margarine, or coconut oil.
A suitable margarine substitute for butter in baking recipes is vegetable shortening or coconut oil.
To substitute vegetable oil for butter in a baking recipe, use a 1:1 ratio. This means for every 1 cup of butter, use 1 cup of vegetable oil. Be mindful that the texture and flavor of the baked goods may be slightly different when using oil instead of butter.
To substitute butter for vegetable oil in a baking recipe, use a 1:1 ratio. Melt the butter and let it cool slightly before adding it to the recipe. This will help maintain the texture and flavor of the baked goods.