Start by grabbing you a pot and setting it on the stove. Go ahead and add in your butter and let that melt all the way down.
Once your butter is melted, add in your flour—same amount as the butter. Now we’re gonna mix that together just like we’re making a gravy. Keep stirring so it comes together nice and smooth.
Next, pour in your milk. Go slow with it and keep stirring so everything blends well. You want that flour to dissolve completely and turn into a creamy, smooth sauce.
Now it’s time to add your peas. If you’re using canned peas, don’t drain them—go ahead and pour them right in with the liquid. That liquid helps build the sauce. If you’re using frozen peas, add them in and pour in about ¼ cup of water.
Give everything a good mix and let it cook until it comes together into a slightly soupy, creamy texture.
Now season it up. Add your salt and black pepper to your liking. Stir it, taste it, and adjust if needed. If it needs a little more salt, go ahead and add it.
Let it heat through for another minute or two, then it’s ready to serve.
