The Roast Beast Master with Crispy Onions and Cream

Name: The Roast Beast Master with Crispy Onions and Creamy Horseradish Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/2 cup mayonnaise; 1/2 cup sour cream; 1/4 cup prepared horseradish; 2 teaspoons honey; 2 teaspoons Dijon mustard; Salt and freshly cracked black pepper; 2 cups buttermilk; 2 onions, thinly sliced root to tip; Vegetable oil, for frying; 2 cups all-purpose flour; 2 teaspoons cayenne; 2 teaspoons paprika; Salt and freshly ground black pepper; 8 fresh onion rolls, buttered and toasted until golden; 4 thick slices sharp Cheddar; 2 pounds good-quality rare roast beef, sliced thin

Servings: persons

1/2 cup mayonnaise
1/2 cup sour cream
1/4 cup prepared horseradish
2 teaspoons honey
2 teaspoons Dijon mustard
Salt and freshly cracked black pepper
2 cups buttermilk
2 onions, thinly sliced root to tip
Vegetable oil, for frying
2 cups all-purpose flour
2 teaspoons cayenne
2 teaspoons paprika
Salt and freshly ground black pepper
8 fresh onion rolls, buttered and toasted until golden
4 thick slices sharp Cheddar
2 pounds good-quality rare roast beef, sliced thin

1
For the horseradish sauce: In a bowl, mix the mayonnaise, sour cream, horseradish, honey and Dijon.
2
Season with salt and pepper.
3
For the onions: Pour the buttermilk over the onions and let them sit for about 30 minutes.
4
Heat 3 inches of oil to 350 degrees F in a medium Dutch oven.
5
Whisk together the flour, cayenne, paprika and some salt and pepper.
6
Remove the onions from the buttermilk and toss them in the flour until thoroughly coated.
7
Fry in batches until the batter is golden, 2 to 3 minutes.
8
Let drain on paper towels and season with salt while hot.
9
For the sandwich build: On the toasted onion rolls, begin with a slice of Cheddar, pile the meat high, add as many crispy onions as the sandwich will hold and schmear the top bun with a healthy portion of horseradish sauce.

3733

kcal

Calories

355

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Swap the honey for maple syrup or agave for a slightly different but equally rich sweetness.
Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 16 ingredients. The key ingredients include: 1/2 cup mayonnaise, 1/2 cup sour cream, 1/4 cup prepared horseradish, 2 teaspoons honey, and more.

Yes, The Roast Beast Master with Crispy Onions and Creamy Horseradish Sauce falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

That's it — enjoy your meal!

The Roast Beast Master with Crispy Onions and Creamy Horseradish Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions