Top sirloin steak braised ideas

deedeelicious, you can use the mustard butter sauce on pretty much any steak cut

This simple mustard butter is great. https://food52.com/recipes/28016-steak-with-mustard-butter

I'd rather sear than braise too. If you decide to go with searing, here are some good tips. The recommended time for letting it sit, salted, is important. http://food52.com/blog/8423-how-to-get-a-good-sear

I also tend to grill or sear/roast sirloin steak, but no harm in experimenting with braising. The only thing I'd caution is that it's a pretty lean cut, so it might tend to get tough when long cooked - sort of the opposite of what happens to well marbled cuts with more connective tissue.

Here is a wonderful recipe for a braised sirloin:
https://food52.com/recipes/10783-quick-braised-sirloin-with-horseradish-sauce
If yours is boneless, I'd still cook it in one piece and then slice to serve.

why would you braise a nice cut steak like that? Braises are usually for tougher parts of the animal that need a long time to break down tissue...a good steak won't be tough. I'd sear it in a cast iron on the highest possible heat for a few minutes each side until browned then pop it in the oven for a few minutes until cooked (medium rare of course). let it sit then slice it in three.