In a pot, over medium heat, warm the butter and vegetable oil then add the diced onion and stir until it turns into a light golden color. Add the ground oats and stir for 30 minutes then add the chicken broth while stirring constantly. let boil.
Add the sweet corn and let boil for 1 minute then add the cooking cream and salt to taste then remove from heat right away. Add fennel leaves and Serve