Add the peas into a pot with boiling water, leave for 1 minute, then drain (if your peas are fresh, frozen, or a little bit larger you may need to cook them for 1-3 minutes until fork-tender, my peas were thawed and very small so only soaking them in boiling water was enough).
Add the peas with butter and mint to a blender. Blend until smooth. Add 1-2 tablespoons of broth or water until the desired consistency is reached.
Season to taste with salt and pepper.
Enjoy!
Notes
You can add less mint at first to make sure the mint flavor is not too strong for you.
Don't add any broth if you want your puree thick.
Store the puree in the fridge for up to 3 days. Cover the puree with plastic foil, the foil should touch the surface of the puree otherwise it can become a little greyish.
You can also use this recipe as a crostini spread (but don't add any broth/water) and make sure to drain peas very thoroughly.
Calories = whole recipe. This is only an estimate!