nikujaga (Simmered Potato & ground beef)

Ingredients for 4 1 lb. ground beef 3 thin slices ginger 4 medium size potatoes 1 carrot 1/2 onion (or 1 whole small onion) 1 tbsp. vegtable oil Ingredients for broth 3 cups  water/ dashi 1 tbsp. sugar 4 tbsp. mirin 3 tbsp. soy sauce 2 tbsp. Sake (this is my personal add in and can be left out if you want it…