These Hawaiian Haystacks are creamy, colorful, and endlessly customizable—the build-your-own family dinner everyone gets excited about! A rich, silky homemade chicken gravy, flavorful upgrades, and my expert tips take this nostalgic comfort-food favorite to the next level, making it an easy weeknight dinner and a fun, crowd-pleasing meal for gatherings.
Dissolve the cornstarch. In a liquid measuring cup or small bowl, whisk the cornstarch into the broth until no streaks remain. Set aside.
Make the roux. In a large saucepan or braiser, melt the butter with the olive oil over medium heat. Whisk in the flour and cook for 3 minutes, whisking constantly. It should be bubbly and smell lightly nutty but stay pale, with no browning. Reduce the heat as needed.
Add the liquid. Remove the pot from the heat. Whisk in the broth a couple of tablespoons at a time, then the milk the same way, whisking constantly. At first, it will form a thick paste. Keep going, and once it loosens into a smooth sauce, you can add the liquid a little faster. Stir in the bouillon, Dijon, Worcestershire, and spices.
Thicken. Return the pot to medium heat and bring it to a gentle boil, whisking constantly. Reduce to a simmer and stir until the gravy coats the back of a spoon. Stir in the sour cream, followed by the chicken, and warm through without boiling. Season with salt and pepper to taste.
Build your haystacks. Spoon rice onto plates, ladle on the chicken gravy, and pile on your favorite toppings. Dig in!