Preheat oven to 350 degees F (175 degrees C). Grease an 8 inch square baking dish. In a large bowl, mix together the semolina flour (Cream of Wheat), baking powder, 1 cup sugar, coconut and butter. Add the yogurt and milk; mix until all is well moistened, but not runny. It should be the consistency of brownie batter. If it's too dry, add a little more milk.