Finely dice onions, crush garlic, mince ginger. Put this with a little oil into a frying pan on low heat and cook until onions translucent, approx 5 minutes
Add salt, paprika, ground almonds, Garam Masala, red curry paste (optional). Cook for 2 minutes.
Add tomato paste and stock, cook 2 minutes.
Place korma mix into slow cooker and add in beef that has been diced into approx 1 inch cubes.
Mix cornflour and yoghurt and add in for last 20 minutes, turn cooker off when you do this.
I cooked this on high for 1st hour and then turned to low for 4hrs. It could all be done on low for at least 6 hrs.
This can also be done with lamb, chicken or vegetables. The chicken version I did 1st hr on high and then 3 hrs on low.