Roast your squash. Begin by preheating your oven to 400 degrees. Peel, scoop out the seeds and with a sharp knife, cube your butternut squash. Place on a baking sheet with parchment with a drizzle of olive oil, salt and black pepper. Roast until fork tender, about 45 minutes to 1 hour. Set aside to cool.
Take out your butter to room temperature. In the meantime, while your squash is roasting, take out your butter to room temperature.
Whip your butter! Next, in a food processor, hand mixer or blender, add in your softened butter, roasted butternut squash, honey, a dash of salt, pepper (if needed) and a dash of nutmeg. Pulse and whip until smooth.
Serve, or store. Set your mixture aside in the fridge (if preferred) until ready to serve. I like to serve at room temperature, but not TOO room temp where it's super runny and melty. So I just take it out a bit before serving so it's easy to scoop and spread.