
Imagine tender chicken and mushrooms nestled in a rich, creamy sauce that's kissed with sherry, then blanketed in melted muenster cheese. That's Chicken Gloria - a casserole that transforms simple ingredients into pure comfort food magic. While it started in Betty Crocker's test kitchen, inspired by Gloria's European-style cooking, our version skips the canned soup for a luxurious homemade sauce that'll make any dinner feel special.
Last week I made this for a dinner party, and my guests couldn't stop asking about that mysterious something in the sauce - it's the sherry! That's the secret that takes this from good to "I need the recipe right now!"
Essential Ingredients
- Chicken breasts: butterflied for quick, even cooking
- Cremini mushrooms: their deep flavor beats white buttons
- Dry sherry: skip the cooking wine, real sherry makes a difference
- Heavy cream: creates that silky sauce
- Muenster cheese: melts beautifully and adds subtle flavor
- Sweet onions: sliced with the grain for perfect texture

Detailed Instructions
- Step 1:
- Start by transforming your chicken breasts - butterfly them, then cut in half. This gives you eight perfect portions that'll cook evenly and stay juicy.
- Step 2:
- Create a seasoned flour mixture and dredge each piece twice. This extra step builds a beautiful crust that helps thicken the sauce later.
- Step 3:
- Get your pan nice and hot with butter and oil combined. Work in batches to brown the chicken - you want that gorgeous golden color without crowding the pan.
- Step 4:
- Next comes the mushroom magic - sauté them until they're golden and their liquid has evaporated. This concentrates their flavor and prevents a watery sauce.
- Step 5:
- Build your sauce starting with sautéed onions and garlic, then deglaze with sherry. Let it reduce before adding stock and cream - this creates layers of flavor.
My grandmother always said a good sauce is worth the extra effort, and this one proves her right. The way the sherry and cream come together creates something that tastes much more complex than the sum of its parts.
The Art of Mushrooms
Don't rush the mushrooms - letting them really brown develops their flavor and prevents that dreaded watery sauce.
Make-Ahead Magic
While best fresh, you can assemble early and bake later. Just bring it to room temperature first for even cooking.
Building Flavor Layers
Each step - from browning the chicken to deglazing with sherry - builds another layer of flavor in the final dish.

Chef's Helpful Tips
- Let the pan get hot before adding chicken for better browning
- Don't skip the parchment paper under the foil - it prevents sticking
- Use freshly grated cheese for better melting
- Cut onions with the grain for perfect texture
After making this dish countless times, I've found it's the perfect solution when you want something that feels special but doesn't require hours in the kitchen. The way the cream sauce mingles with the melted cheese creates something that tastes like it came from a fancy restaurant.
Frequently Asked Questions
- → Can I make this ahead?
- Yes, assemble up to a day ahead and bake before serving
- → What can I substitute for sherry?
- White wine or chicken broth work as alternatives
- → Can I use different mushrooms?
- Any mushroom variety works well in this recipe
- → What cheese can I substitute?
- Provolone or Havarti make good alternatives to Muenster
- → Why double dredge the chicken?
- Creates a thicker coating that helps thicken the sauce