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Truffle Umami Blast Burgers

Truffle Umami Blast Burgers

with Parmesan Frico, Potato Wedges & Crisp Green Salad
4.5(2.9K)
Recipe Development Team
Recipe Development TeamUpdated on February 09, 2026
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Calories
690 kcal
Protein
34g protein
Difficulty
Easy
Allergens:
  • Eggs
  • Wheat
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
Serving amount

12 ounce

Potatoes

2 g

Truffle Seasoning

¼ cup

Parmesan Cheese

4 tablespoon

Sour Cream

1 unit

Lemon

1 unit

Beef Stock Concentrate

unit

Ketchup

2 tablespoon

Mayonnaise

(Contains: Eggs)

10 ounce

Ground Beef

2 unit

Brioche Buns

(Contains: Wheat)

2 ounce

Mixed Greens

1 unit

Shallot

4 ounce

Button Mushrooms

Not included in your delivery

teaspoon (tsp)

Salt

teaspoon (tsp)

Black Pepper

/ per serving
Calories690 kcal
Fat37 g
Saturated Fat12 g
Carbohydrate50 g
Sugar14 g
Dietary Fiber4 g
Protein34 g
Cholesterol125 mg
Sodium900 mg
Trans Fat1.5 g
Potassium480 mg
Calcium50 mg
Iron6.1 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Baking Sheet
Small Bowl
Zester
Large Pan
Medium Bowl

Cooking Steps

Pickle Shallot and Start Potatoes
1

Preheat oven to 450 degrees. Wash and dry all produce. Peel and thinly slice shallot. Zest and quarter lemon. In a small bowl, combine half the shallot, juice from 2 lemon wedges, 2 TBSP hot water (¼ cup for 4 servings), and ¼ tsp sugar (½ tsp for 4); set aside. Cut potatoes into ½-inch-thick wedges; toss on a baking sheet with a large drizzle of olive oil, salt, and pepper. Roast on top rack for 15 minutes.

Finish Potatoes and Make Frico
2

Once potatoes have roasted 15 minutes, remove from oven and push to one side of sheet. Mound Parmesan on empty side in two even piles. (For 4 servings, leave potatoes roasting and add cheese to a second sheet; bake on middle rack.) Return to oven and bake until cheese is melted and crispy at edges and potatoes are tender, 5-7 minutes more. Let frico cool for 1 minute on sheet, then transfer to a plate.

Cook Mushrooms
3

Meanwhile, trim and thinly slice mushrooms. Heat a large drizzle of oil in a large, preferably nonstick, pan over medium-high heat. Add mushrooms; cook until golden brown, 3-4 minutes. Add remaining shallot; cook, stirring, until softened, 2-4 minutes. Stir in ¼ cup water (⅓ cup for 4 servings) and stock concentrate; cook until liquid has mostly evaporated, 1-2 minutes. Season with salt and pepper. Turn off heat; transfer to a plate. Wipe out pan.

Form Patties
4

Meanwhile, halve buns. In a medium bowl, combine beef and ¼ tsp truffle zest (½ tsp for 4 servings; you’ll use more later). Season generously with salt and pepper. Form into two equalsized patties (four patties for 4), each a bit wider than a burger bun.

Cook Patties and Make Truffle Cream
5

Heat a drizzle of olive oil in pan used to cook mushrooms over medium-high heat. Add patties and cook to desired doneness, 3-5 minutes per side. Meanwhile, in a second small bowl, combine mayonnaise, sour cream, ¼ tsp truffle zest (½ tsp for 4 servings), salt, and pepper. (Taste and add more truffle zest if desired.) Toast buns until golden.

Make Salad and Serve
6

Drain pickled shallot; toss in a second medium bowl with mixed greens, juice from remaining lemon, a drizzle of olive oil, salt, pepper, and lemon zest to taste. Spread cut sides of buns with a bit of truffle cream. Fill buns with patties, mushroom mixture, and frico. Serve with potato wedges, salad, and remaining truffle cream on the side.