Chicken and Smoky Sausage Corn Chowder

Heat oil in a medium pot. Cook chorizo until fat is rendered. Add onions; saute until translucent.
Add chicken; cook for 10 minutes.

Add water and milk; allow to boil for 5 minutes. Add potato, carrot, and corn kernels.

 Set aside 2 tablespoons of the liquid in a small bowl. Mix in cornstarch until it dissolves; add mixture back to the pot. Let chowder simmer until thick, about 15 minutes.