Well, it was a super simple recipe that I made even easier by whisking by hand rather than breaking out the stand mixer. I simply allowed the butter to come to room temperature first, then used a little elbow grease, and viola(!) spreadable butter without the mystery ingredients. It works just like the fake stuff and tastes so much better.
Homemade Spreadable Butter
1/2 c butter, room temperature*
1/4 c canola oil
1-2 TBS water, if desired
*I used salted butter, but you could use unsalted and salt to taste.
Using a stand mixer or whisk, whisk together oil and butter. Add water to achieve desired consistency. Refrigerate and use as you would use the fake stuff.
Note: The fake stuff has food coloring in it to make it look more like butter. Adding oil to butter makes a pale-looking final product, but that's more an acceptable a trade-off.