Indian Spiced Potato and Onion Soup (Slow Cooker)

preheat slow cooker on high					simmer in slow cooker 3hr until potato soft	season	blend	garnish
1 ¹⁄₆tbsp 0.018l 17 ¹⁄₂ml 3 ¹⁄₂tsp 0.074cup 0.031pint vegitable oil	heat	cook 5min til soft	cook 5min stir often	fry 2min
1 ¹⁄₆ onion	finely chop
1 ¹⁄₆ cm ginger	peeled and diced
2 ¹⁄₃ large potatoes	dice 1cm cubes
2 ¹⁄₃tbsp 0.035l 35ml 7tsp 0.148cup 0.062pint cold water	mix into paste
2 ¹⁄₃tsp 0.012l 11 ²⁄₃ml 0.778tbsp 0.049cup 0.021pint ground cumin
2 ¹⁄₃tsp 0.012l 11 ²⁄₃ml 0.778tbsp 0.049cup 0.021pint ground coriander
⁷⁄₁₂ tsp 0.003 l 2 ¹¹⁄₁₂ ml 0.194 tbsp 0.012 cup 0.005 pint ground turmeric
1 ¹⁄₆tsp 0.006l 5 ⁵⁄₆ml 0.389tbsp 0.025cup 0.01pint ground cinnamon
1 ³⁄₄ pints 4.2 cup 0.994 l 994 ml 66.3 tbsp 199 tsp chicken stock
salt
1 ¹⁄₆tbsp 0.018l 17 ¹⁄₂ml 3 ¹⁄₂tsp 0.074cup 0.031pint natural yoghurt
pepper