Kentucky Derby Hot Brown Casserole Recipe

Prep: 20 minCook: 40 min10 servingsmediumAmerican
Kentucky Derby Hot Brown Casserole Recipe

A hearty casserole inspired by the legendary Hot Brown sandwich from Louisville's Brown Hotel. Layers of toasted bread cubes, roasted chicken, and crispy bacon are smothered in a rich cheese sauce made with sharp cheddar and Parmesan. Perfect for Derby Day parties or family gatherings when you want all the flavors of the classic open-faced sandwich in an easy-to-serve format. The creamy sauce binds everything together while cherry tomatoes add fresh acidity to balance the richness.

Ingredients

10 servings
  • 4 cups toasted bread cubes, cut from good bread into 1 inch pieces
    cornbread cubes1:1gluten-free

    Southern twist

  • 3 chicken breasts, roasted and large diced or shredded
    turkey breast1:1poultry

    similar flavor profile

    Full guide →
  • 1 cup cooked bacon, crumbled
  • 1 carton cherry tomatoes, halved
  • 1 cup sharp cheddar cheese, finely shredded
    Gruyere1:1dairy-freeflavordairy-free

    nuttier taste

    Full guide →
  • 1 stick butter
  • ¾ cup flour
  • 7 cups milk
    half and half1:1richness

    richer sauce

    Full guide →
  • 1 cup Parmesan cheese, freshly grated
  • 2 large eggs, lightly beaten
  • 1 teaspoon salt, or to taste

Instructions

  1. 1

    Layer toasted bread cubes in bottom of large casserole dish

  2. 2

    Layer roasted chicken over bread cubes and season with salt and pepper

  3. 3

    Melt butter over low heat in large pot

  4. 4

    Whisk flour into melted butter

  5. 5

    Slowly add milk while whisking continuously

  6. 6

    Turn heat to medium and add grated Parmesan cheese

  7. 7

    Continue whisking until mixture begins to thicken then remove from heat

  8. 8

    Whisk one cup of sauce slowly into beaten eggs

  9. 9

    Pour egg mixture slowly back into pot and return to low heat

  10. 10

    Whisk until mixture thickens but do not boil then remove from heat and season

  11. 11

    Pour sauce over chicken and bread layers

  12. 12

    Sprinkle cheddar cheese over sauce layer

  13. 13

    Add halved cherry tomatoes and top with bacon crumbles

  14. 14

    Bake uncovered at 350 degrees for 30-40 minutes

  15. 15

    Broil briefly for browned top if desired

Tips

Tip 1

Temper the eggs slowly by adding hot sauce gradually to prevent curdling and ensure a smooth cream sauce

Tip 2

Toast bread cubes until golden for better texture that won't get soggy under the sauce

Tip 3

Let casserole rest 10 minutes after baking for easier serving and better layer definition

Good to Know

Storage

refrigerate covered up to 3 days

Make Ahead

assemble day before, cover and refrigerate, add 10-15 minutes to baking time

Serve With

let rest 10 minutes before serving, serve hot from casserole dish

See pairing guide →

Common Mistakes

Watch

temper eggs slowly to avoid curdling

Watch

do not boil sauce after adding eggs to prevent breaking

Watch

toast bread cubes well to avoid soggy texture

Substitutions

Dairy-Free Swaps

sharp cheddar
Gruyere1:1dairy-freeflavordairy-free

nuttier taste

Full guide →

Gluten-Free Swaps

bread cubes
cornbread cubes1:1gluten-free

Southern twist

General Alternatives

chicken breasts
turkey breast1:1poultry

similar flavor profile

Full guide →
milk
half and half1:1richness

richer sauce

Full guide →
Find more substitutions →

FAQ

Can I make this ahead of time?

Yes, assemble the casserole completely, cover and refrigerate overnight. Add 10-15 minutes to the baking time when cooking from cold.

What if I don't have cherry tomatoes?

Regular tomatoes work fine - just dice them and drain excess liquid. Roma tomatoes hold their shape well during baking.

How long does this keep in the refrigerator?

Properly stored covered casserole will keep 3-4 days. Reheat individual portions in microwave or whole casserole in 325 degree oven.