Smoky Bean Burgers with Avocado and Lime Mayonnaise

Black beans, mushrooms and oats make a substantial homemade burger, with smoked paprika adding warmth and a little depth. Creamy avocado, sharp pickled onion and smoky lime mayonnaise give each mouthful a balance of richness, freshness and crunch from the toasted bun.

The beans need to be thoroughly tender, and chilling the shaped patties helps them hold together in the pan. Turn them gently and give the outside time to brown: these burgers appreciate a little care, particularly when making the journey from frying pan to bun.

Prep Time 30 mins

Cook Time 90 mins

Total Time 2 hrs

Cuisine: Mexican

Courses: Mains

Difficulty: Beginner

Servings: 2

Calories: 583

Best Season: All year

Dietary: Vegan

Description

Homemade black bean and mushroom patties in toasted sesame buns, with avocado, pickled red onion and smoky lime mayonnaise.

Ingredients

100 g dried black beans (soaked overnight; use 220 g after cooking)
100 g mushrooms (finely chopped)
30 g rolled oats
1 tsp smoked paprika (2.3 g)
1 tsp vegetable oil (plus 1 tsp for frying)
1 tbsp white wine vinegar
2 tsp maple syrup
0.25 tsp salt
0.25 red onion (25 g prepared, finely sliced)
3 tbsp vegan mayonnaise (45 ml)
0.5 tsp chipotle chilli powder (1.2 g, made by finely grinding dried chipotle flakes)
0.5 tsp tomato purée
1 lime (use 30 g juice, plus zest)
2 sesame burger buns (60 g each, vegan)
0.5 avocado (75 g peeled flesh, sliced)

Instructions

1
Drain the soaked beans and cover with fresh water. Bring to a full boil and boil briskly for 30 minutes, then simmer for 30 to 60 minutes more, until completely soft. Drain well and measure 220 g.
2
Combine the vinegar, maple syrup and salt. Add the red onion and set aside while making the burgers.
3
Cook the mushrooms in 1 tsp oil for 8 to 10 minutes, until their liquid has evaporated. Mash the beans, then mix with the mushrooms, oats and smoked paprika. Shape into two firm patties and chill for 20 minutes.
4
Mix the chipotle powder and tomato purée with a few drops of water to make 1 tsp paste. Stir into the mayonnaise with the lime zest and juice.
5
Heat the remaining 1 tsp oil in a frying pan. Cook the patties for 5 to 6 minutes on each side, until browned and hot throughout. Turn carefully.
6
Toast the split buns. Spread with the mayonnaise, add avocado and a burger, then top with drained pickled onion and the bun lids.

Nutrition Facts

Servings 2

Amount Per Serving
Calories 582.887kcal

% Daily Value *
Total Fat 22.38071g35%
Saturated Fat 3.413427g18%
Sodium 619.5715mg26%
Total Carbohydrate 78.413243g27%
Dietary Fiber 18.3233g74%
Sugars 11.325127g
Protein 19.252777g39%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

Allow overnight soaking and 20 minutes chilling. Use 220 g cooked beans and reserve any surplus. Allergens depend on buns and mayonnaise; sesame and wheat/gluten are present.

Nutrition is an estimate per serving, based on the stated weights. Optional garnishes, accompaniments and extra seasoning are excluded. Brands and preparation can change the figures. Includes two 60 g buns and 75 g avocado. All pickling ingredients are included conservatively; draining the onions can reduce sugar and salt. The small unweighed quantity of lime zest is excluded.