Indian kidney bean curry

Heat 3 Tbsp vegetable oil in a medium saucepan on medium heat, then add 1 small onion (grated), 1 Tbsp microplaned ginger, and about 2 garlic cloves (minced).   When fragrant and onion is golden brown, add 1 ripe tomato, cut into quarters.  Reduce heat to medium-low and stir frequently until tomato melts into the onion mixture (about 5 mins).  Add ¾ tsp garam masala (see our note below), ¼ tsp cayenne pepper, ¾ tsp salt, and ¾ tsp ground black pepper.  Cook uncovered for 6 mins, stirring frequently, then add 30 oz canned dark red kidney beans with 1 cup bean liquid.  Bring to a rolling boil, then reduce to a simmer and cook uncovered until flavors meld (about 15 mins).  Recipe from Healthy Indian Vegetarian Cooking by Shubhra Rameneni.  (Feb. 2015)