Here is a tried and tested recipe for 'Dal Makhani' - A popular North Indian dish:

Ingredients

a) 1 cup Black urad dal (whole)
b) 1/4 cup Kidney beans
c) 1 tablespoon grated Ginger
d) 2 teaspoons Red chilli powder
e) 3/4 cup Tomato puree
f) 2 medium Tomatoes - finely chopped
g) 1 tablespoon Ginger-garlic paste
h) 1 teaspoon Garam masala
i) 1 teaspoon roasted Cumin seed powder
j) 3/4 cup Fresh cream
k) 5 tablespoons Butter Salt (As per taste)
l) 2 medium - sized onions - thinly sliced

Method

a) Soak dal and rajma together for one at least 6-7 hours.
b) Pressure cook Dal and Rajma with salt, grated ginger, 1 teaspoon red chilli powder and water (the water should be 3 times the total amount of dal and rajma)
c) Melt the butter in a pan, add onions and sauté till they turn pink.
d) Add the ginger-garlic paste. Saute till golden brown.
e) Add finely chopped tomatoes and cook till pulpy.
f) Let the contents of the pan cool down. Once cooled, churn the same in a mixie for making a gravy.
g) Transfer the contents back to a medium-hot pan.
h) Add the Cumin seed (jeera) powder, remaining red chilli powder and saute for 1-2 minutes.
i) Add the tomato puree. Saute for another 2-3 minutes.
j) Add the cooked dals into this masala.
k) Add garam masala powder and mix.
l) Cover and cook over a low flame for about 35 minutes with occasional stirring. Add fresh cream and garnish with fresh coriander before serving

Dal Makhani is ready!