Never. If I am going to the bother of baking something delicious, I would use only butter. Butter comes straight from the cow; margarine is a manufactured food.
Ingredients in unsalted Fleishman’s Margarine:
Corn Oil Liquid, Soybean(s) Oil Partially Hydrogenated, Whey, Salt, Vegetable(s) Mono and Diglycerides, Soy Lecithin Emulsifiers, Potassium Sorbate, Calcium Disodium EDTA, Phosphoric Acid, Vitamin A Palmitate, Color(s), with Beta Carotene, Flavor(s) Artificial, Vitamin D3
Analysis of ingredients in Smart Balance: Source Caveat: some editorializing. I was going to edit and shorten this info but decided not to.
The soybean and canola oils are almost certainly genetically modified. Frankenfood at its finest!
The olive oil isn’t even extra virgin olive oil. Can we say cheap, cheap, CHEAP?
Natural and artificial flavor – this must be where that “buttery taste you crave” part comes in. Excellent stuff if you dig tricking your taste buds (newsflash, you won’t trick your tummy though. At least not for long. You’ll be craving that “buttery taste” soon after and more than likely sticking your head in a big bowl of ice cream by 9pm).
Soy lecithin – yet another genetically modified ingredient.
Vitamin A palmitate – the synthetic form of vitamin A. Since there’s not much natural about Smart Balance in the first place, “fortification” with synthetic vitamins seems logical!
Vitamin D – the label doesn’t even specify what type, but I can pretty much guarantee it’s synthetic D2. Is this the wondrous vitamin D everyone – even Oprah is raving about lately? Brilliant marketing and wishful thinking doesn’t make it so.
Beta carotene color – the normal color for factory produced margarine like Smart Balance is a very unappetizing grey, so color is definitely needed here to fool the masses.
Potassium sorbate – a supposedly safe food preservative that inhibits microbial growth. Safe at least until they find it isn’t. Three cheers for being a guinea pig!
Calcium disodium EDTA – an organic pollutant which breaks down in the environment into ethylenediamine triacetic acid and then diketopiperazine. Diketopiperazine is a persistent organic pollutant, similar to PCBs and DDT. Not only does Smart Balance pollute the bodies of those who eat it, it pollutes the environment too!