Melt margarine in a large saucepan over medium heat until sizzling, about 1 minute. Add chicken and cook until no longer pink inside and juices run clear, 3 to 5 minutes.

Add onion and garlic to the saucepan and cook until soft, about 5 minutes. Combine water and bouillon cube in a bowl and stir to dissolve. Pour into saucepan. Add coconut cream and curry powder and stir to combine. Bring to a boil, about 5 minutes. Reduce heat to a simmer, cover saucepan, and cook about 30 minutes.

Remove from heat and stir yogurt into the saucepan. Mix well before serving.