01 -
Boil the noodles following the instructions on the package and set aside.
02 -
Brown the ground beef in a pan until it's fully cooked, about 6 to 8 minutes. Drain extra fat if necessary.
03 -
In the same pan, melt butter, then stir in flour. Let it cook for a couple of minutes.
04 -
Slowly whisk in broth and then milk. Keep stirring until it thickens, which should take about 7 to 10 minutes.
05 -
Stir in garlic powder, onion powder, salt, and pepper.
06 -
Combine the cooked beef, noodles, and sour cream into the sauce. Heat everything until warmed through.