Can I replace some of the butter with applesauce or Greek yogurt? And would I be able to change the amount of brown sugar without significantly changing the texture (what would you recommend?) and would it be really good with some peanut butter or even cream cheese in the batter? I think making all of those changes at once would be a little risky and you would be compromising the flavor and texture noticeably. Try altering one thing at a time. I would use applesauce to replace the butter. We have a recipe for cream cheese brownies that you may want to try. ~Amy

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