Thorough creaming: Make sure that your butter and sugar are thoroughly creamed before adding anything else. The amount of time this will take is going to depend on how much power your stand mixer or hand mixer has.
Use ripe bananas: The riper your bananas are, the more flavor they will bring. Ripe bananas are also much easier to mash. You want your bananas to have an almost pureed consistency so they mix into the cookie dough evenly.
Cool in the pan: Let the cookies cool for a few minutes before attempting to move them on to a cooling rack, otherwise they might break.
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