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    Home » Recipes » Beef

    Patty Melt with Secret Sauce

    Published: Apr 22, 2021 · Modified: Jun 6, 2021 by Heather · As an Amazon Associate I earn from qualifying purchases. · 850 words. · About 5 minutes to read this article.

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    Patty melt with secret sauce recipe.
    Patty melt with secret sauce recipe.
    Patty melt with secret sauce recipe.

    Make a patty melt with secret sauce next time you're craving some seriously indulgent comfort food! A thin ground beef patty is layered with caramelized onions, two types of melty cheese, and a tangy secret sauce.

    Patty melt sliced in half on a white plate.

    A variation of the classic cheeseburger, the patty melt is a diner menu staple. Served on buttered rye bread instead of a bun, the patty melt is pan fried until golden brown and melty. Hearty, comforting, and delicious!

    This patty melt starts with thin, oblong, ground beef patties. The thinner the better - you'll want to leave room for plenty of caramelized onions, two types of cheese, and a tangy sauce on top. Rye bread is the classic bread choice, slathered to the edges with plenty of butter.

    And the "secret sauce"? Not so secret anymore - I've included the recipe below! You'll be adding this tangy, thousand island-esque sauce to everything.

    Ingredients and substitutions

    Ingredients on a counter top.

    I suggest using 85/15 or 90/10 ground beef. Higher fat ground beef will make this sandwich extra greasy.

    Rye bread is the classic bread of choice for a patty melt, but Texas toast or white sandwich bread make good alternatives.

    I used a combination of swiss cheese and cheddar cheese. You're welcome to use all swiss or all cheddar if you prefer.

    Worcestershire sauce can be substituted with soy sauce or steak sauce if needed for allergy reasons.

    Secret sauce ingredients

    Ingredients on a counter top.

    The base of this secret sauce is made with mayonnaise and ketchup - I don't suggest omitting either of these ingredients.

    Dijon mustard can be substituted with yellow mustard.

    Pickle juice can be substituted with apple cider vinegar or white vinegar.

    What is secret sauce?

    So what exactly is secret sauce? Many fast food and sit down restaurants serve burgers, fries, and patty melts with a "secret sauce".

    Secret sauce is usually a variation of thousand island dressing. The base is made with mayonnaise and ketchup, with other flavors added like mustard, paprika and garlic.

    The main difference is that thousand island dressing usually contains pickle relish, whereas burger sauce does not. I like to use a dash of pickle juice in my secret sauce to get the same flavor, but without the chunky texture.

    Otherwise, the flavor is very similar! It's also easy to customize. Once you've made it a time or two, it's easy to adjust the ingredients to suit your tastes.

    Cooking a patty melt in a skillet.

    Caramelizing onions

    Caramelizing onions requires very little as far as ingredients are concerned. All you really need is a little olive oil and sliced onions.

    If you've never caramelized onions before, it takes more than just a few minutes of browning onions in a pan. It's best done low and slow on the stove top.

    For this recipe, it will take about 25-30 minutes to caramelize your onions. This is the longest part of the patty melt process, but it's worth the time and effort.

    Cheese melting down the side of a patty melt sandwich.

    What to serve with patty melts

    • French fries
    • Onion rings
    • Oven Roasted Cajun Sweet Potato Wedges
    • Ranch Roasted Potatoes
    • Side salad
    • Cheesy Broccoli (gluten-free)
    • Classic Pasta Salad
    Cheese melting down the side of a patty melt sandwich.
    Print Recipe
    4.68 from 34 reviews

    Patty Melt with Secret Sauce

    Make a patty melt with secret sauce next time you're craving some seriously indulgent comfort food! A thin ground beef patty is layered with caramelized onions, two types of melty cheese, and a tangy secret sauce.
    Prep Time10 minutes
    Cook Time45 minutes
    Total Time55 minutes
    Servings: 4 sandwiches
    Calories: 694kcal
    Author: Heather

    Ingredients

    Secret Sauce

    • ¼ cup mayonnaise
    • 2 tablespoons ketchup
    • 1 tablespoon dijon mustard
    • 1 teaspoon pickle juice
    • ¼ teaspoon paprika
    • ¼ teaspoon garlic powder

    Patty Melts

    • 2 tablespoons olive oil
    • 2 large onions, thin sliced
    • 12 ounces 85/15 ground beef
    • ½ teaspoon salt
    • ½ teaspoon pepper
    • 1 teaspoon worcestershire sauce
    • 8 slices rye bread
    • 3 tablespoons unsalted butter
    • 4 swiss cheese slices
    • 4 cheddar cheese slices

    Instructions

    Secret Sauce

    • In a bowl, add mayonnaise, ketchup, mustard, pickle juice, paprika, and garlic powder. Mix until smooth. Set aside.

    Patty Melts

    • In a skillet over medium-low heat, add olive oil. When warm, add onions to pan and cook until softened and deep golden brown, about 25-30 minutes. (If onions begin to dry out or look like they're going to burn, add a splash of water to the pan and reduce the heat slightly.) Remove from heat and set aside.
    • In a bowl, add ground beef, salt, pepper, and worcestershire sauce. Mix to combine and form into four thin, oblong patties (shape patties to match the shape of your bread). In a skillet over medium heat, add patties and cook until browned on both sides. Remove from heat and set aside. Wipe out any excess grease from the pan.
    • Butter one side of each piece of bread. In a skillet over medium heat, layer your sandwiches as so: one slice of bread (buttered side down), one slice of swiss cheese, beef patty, caramelized onions, secret sauce, slice of cheddar cheese, and one slice of bread (buttered side up). Cook until golden brown on the bottom, flip, and cook until golden brown on the opposite side (this should take 1-2 minutes per side).

    Equipment Recommendations

    • Stainless Steel Skillet
    • Zwilling Pro Chef's Knife
    • Boos Maple Cutting Board

    Notes

    • Secret sauce recipe will make more than enough to top four sandwiches, with leftover for dipping or enjoying again later. Store any leftover sauce in the refrigerator in a sealed container. 

    Nutrition Estimate

    Calories: 694kcal | Carbohydrates: 42g | Protein: 27g | Fat: 46g | Saturated Fat: 17g | Trans Fat: 1g | Cholesterol: 103mg | Sodium: 1009mg | Potassium: 535mg | Fiber: 5g | Sugar: 8g | Vitamin A: 534IU | Vitamin C: 6mg | Calcium: 229mg | Iron: 4mg
    Course: Main Course
    Cuisine: American

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    1. Jeni

      February 14, 2023 at 4:50 pm

      I absolutely LOVE this and I really loved the fact that you put “what to serve” that really helps!! Thank you !

      Reply
    2. Rachel

      October 14, 2022 at 10:09 pm

      My burger meat kept shrinking as it was cooking. How do I keep this from happening?

      Reply
      • Heather

        October 14, 2022 at 10:14 pm

        Hi Rachel, you're going to want to form your patties as thin as possible, maybe even a little larger than your pieces of bread. They're naturally going to shrink as they cook due to the fat rendering out. The higher the fat percentage of your ground beef, the more it will shrink, so you could also try a slightly leaner beef which will shrink a little less.

        Reply
    3. Vicki

      August 03, 2022 at 10:59 pm

      I made this for dinner tonight — it was delicious! My husband raved about it. Thank you!

      Reply
    4. John

      May 21, 2022 at 12:47 pm

      Onions simmered with mushrooms and garlic to give it a additional layer of flavor

      Reply
    5. Erin M.

      March 07, 2022 at 5:46 pm

      Just made this recipe and it was delicious! The sauce goes perfectly with the patty melt. This meal will be a regular dinner at my hous!

      Reply
    6. Russ

      February 06, 2022 at 2:16 pm

      Made this melt last night followed your recipe and ate every bite! Thanks for sharing.

      Reply
    7. Caroline

      July 05, 2021 at 5:56 pm

      Soooo good. Searched for an hour reading all these patty melt recipes.. I decided to try yours , due to your secret sauce.. the taste amazing family loved it.. my go to recipe now

      Reply
      • Heather

        July 05, 2021 at 6:03 pm

        Thank you for the glowing review, Caroline!

        Reply

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    Heather of The Toasty Kitchen

    Hi, I'm Heather of The Toasty Kitchen. I love cooking with real, unfussy ingredients, and I want to help you make homemade meals with ease.

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