Description
These French Dip Sliders are warm, cheesy, and packed with tender roast beef and caramelized onions, served with a flavorful au jus for dipping—perfect for parties, game days, or cozy family dinners.
Ingredients
- 12 slider buns
- 4 tbsp unsalted butter (divided)
- 1 large yellow onion, thinly sliced
- 1 tsp fresh thyme leaves (plus more for topping)
- 2 cloves garlic, minced
- 1 tsp granulated sugar
- 1/2 tsp salt (plus more to taste)
- 1/2 tsp black pepper
- 1 lb roast beef, thinly sliced
- 8 slices Swiss cheese
- 1 can (10.5 oz) French onion soup
- 1/2 cup water
- 1 packet Au Jus mix
Instructions
- Preheat oven to 350°F (175°C). Place the bottom halves of the slider buns in a baking dish.
- In a skillet over medium heat, melt 2 tbsp butter. Add onions, thyme, garlic, sugar, salt, and pepper. Cook until onions are soft and golden, about 10–12 minutes.
- Add roast beef to the skillet and warm it with the onion mixture for 2–3 minutes.
- Spoon the beef and onion mixture evenly over the bottom buns. Top with Swiss cheese slices and cover with the bun tops.
- Melt the remaining 2 tbsp butter and stir in a pinch of thyme, minced garlic, and a bit of salt. Brush over the tops of the buns.
- Bake sliders for 15–20 minutes, or until cheese is melted and tops are golden brown.
- While baking, combine French onion soup, water, and au jus mix in a saucepan. Heat until warmed through, about 10–12 minutes.
- Serve the warm sliders with the prepared au jus on the side for dipping.
Notes
- Swap Swiss cheese for Gruyère, provolone, or Havarti.
- Use dried thyme if fresh isn’t available—just reduce the quantity slightly.
- Add horseradish or Dijon mustard under the beef for extra flavor.
- Lightly toast the buns before assembling for added crunch.
- Different deli meats like turkey also work great in this recipe.
Nutrition
- Serving Size: 1 slider
- Calories: 285
- Sugar: 3g
- Sodium: 610mg
- Fat: 17g
- Saturated Fat: 9g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 19g
- Fiber: 1g
- Protein: 15g
- Cholesterol: 48mg
