Mushroom Smash Burgers

By

Source: NYT Cooking.

Smash burger · Mushroom · American

Meaty portobello caps are smashed and melted with tangy Cheddar under a weight until gorgeously caramelised. Fresh lettuce, tomato and classic sauces complete these hefty, satisfying mushroom sandwiches.

Prep10 min
Cook15 min
Total25 min
DifficultyEasy
Per serving633 kcal
FreeVegetarian
Servings2Recipe makes 2
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Allergens (EU 14)
GlutenCrustaceansEggsFishPeanutsSoybeansMilkTree nutsCeleryMustardSesameSulphitesLupinMolluscs

Always check the labels of the products you use.

Method

  1. 1

    Prepare. Mix 60 ml neutral oil, 1 tsp onion powder, ½ tsp fine salt and ¼ tsp ground black pepper in a small bowl.

  2. 2

    Coat. Score an X in the top of each of the 4 large portobello mushroom caps and coat all over with the oil mixture.

  3. 3

    Cook. Heat one heavy frying pan over medium-high, add the caps and set the foil-wrapped second heavy pan on top; turn every 2 min.

  4. 4

    Press. From about 4 min in, press down on the top pan periodically whilst turning for 8-10 min total until the caps are browned and thin, lowering the heat if they char, adding 1 tbsp more oil if dry.

  5. 5

    Melt. Turn heat to low, lay 4 slices of mature Cheddar on top, cover with a lid or tray for 1-2 min until melted.

  6. 6

    Assemble. Put 2 caps in each bun and divide the 2 lettuce leaves, sliced tomato and 4 tsp mayonnaise, ketchup and/or mustard between the buns.

Storage

These are best served immediately, but leftover patties can be refrigerated for up to 2 days and reheated gently under the grill. Cool leftovers in a shallow container and refrigerate within 2 hours (within 1 hour on a day above 32°C).

Free sugars

Sugar (daily guide)

4.4 g per serving

8.8 % of the 50 g daily maximum · 17.6 % of the ideal 25 g

Free sugars under 50 g a day, ideally about 25 g, based on WHO free-sugar guidance (not endorsed by WHO). The share shown is the share of one serving. WHO

Equipment

  • 2 large heavy (cast-iron) frying pans
  • foil
  • small bowl
  • tongs
  • lid or baking tray

Nutrition per serving Calculated from USDA FoodData Central

Per servingAmount
Energy633 kcal
Protein17.5 g
Carbohydrate35.5 g
of which sugars6.7 g
of which free sugars4.4 g
Fat47.4 g
of which saturates10.9 g
Fibre2.5 g
Salt2.94 g

Protein per 100 kcal

2.8 g High protein needs ≥ 5 g per 100 kcal (20% of energy) and ≥ 10 g per serving

Calculated from USDA FoodData Central ingredient values