Add the softened butter and maple syrup to the bowl of a stand mixer, or to a medium sized bowl with a hand mixer.
Whip on medium speed until the mixture is thoroughly combined and fluffy, for about 3-5 minutes. Use a rubber spatula to scrape down the sides a few times to make sure everything is whipped evenly.
Transfer the whipped maple butter to a small bowl and serve immediately or refrigerate until ready to use. Take it out at least 1 hour prior to serving so it can soften.
Spread it on waffles, pancakes, French toast, biscuits, cornbread, toasted sourdough or anywhere you want a sweet salty buttery finish.
