Melt butter and sear brats for 6-7 minutes, flipping once.
Add onions while the brats are searing, tossing occasionally with tongs
Pour in broth, cover and reduce to a simmer for 10 minutes.
Remove the brats once cooked through.
Notes
Leave the lid off and continue simmering the onions for extra caramelization. Add sauerkraut to the broth, onions and bratwurst and serve over mashed potatoes for a delicious option.