Air Fryer Sweet Potato and Black Bean Couscous Cakes

Name: Air Fryer Sweet Potato and Black Bean Couscous Cakes
Prep time: 20 min
Cook time: 15 min
Total time: 35 min
Yield: 4 servings
Cuisine: Mexican
Ingredients: 8 oz (225 g) sweet potato, roasted, peeled and mashed; 1 cup (140 g) pearl couscous, cooked, cooked according to package directions, cooled; 1½ cups (300 g) black beans, canned, drained and rinsed; 2 large (100 g) large eggs, at room temperature; 1 whole (100 g) lime, zest and juice; ¼ cup (10 g) fresh cilantro, finely chopped; 1 tsp (2 g) ground cumin; 2 cloves (6 g) garlic cloves, minced; ½ cup (55 g) panko breadcrumbs; ½ tsp (3 g) salt; ¼ tsp (½ g) freshly ground black pepper; ¼ cup (35 g) cotija cheese, crumbled (optional); 1 tbsp (15 ml) olive oil

From the MyKitchenBank Kitchen

Crispy-outside, tender-inside patties made with fluffy pearl couscous, roasted sweet potato, and seasoned black beans. Finished in the air fryer with a bright Mexican-inspired blend of cumin, cilantro, and lime juice, these easy vegetarian cakes are perfect for a quick weeknight dinner, packed lunch, or appetizer platter.

Prep: 20 min
Cook: 15 min
Total: 35 min
Makes: 12 cakes (3 per serving)

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Steps

Before you start

Roast the sweet potato at 400°F (204°C) for 25–30 minutes, or prepare it up to 1 day ahead and store in the fridge
Cook the pearl couscous according to package directions (you'll need 1 cup cooked); this takes about 5–10 minutes and can be done while prepping other ingredients
Preheat your air fryer to 375°F (190°C)
Drain and rinse the canned black beans

1
Mash and Mix Base
- Peel the roasted sweet potato and roughly chop it.
- Place in a large mixing bowl and mash with a fork until mostly smooth with some small chunks remaining (you should have about 1 cup mashed).
- Add the cooked pearl couscous, panko breadcrumbs, ground cumin, salt, and black pepper.
- Stir well with a wooden spoon or rubber spatula until everything is evenly distributed and no dry pockets remain.
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Ready when: mixture is evenly combined with no dry pockets
Tip: Don't overwork the sweet potato—small chunks add pleasant texture to the finished cakes
2
Prepare Wet Ingredients
- In a small bowl, beat the two large eggs lightly with a fork until the whites and yolks are combined.
- Using a microplane or fine grater, zest the lime directly into the bowl.
- Cut the lime in half and juice it into the bowl—you need about 2 to 3 tablespoons of juice.
- Add the minced garlic cloves.
- Whisk together until smooth and combined.
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Ready when: mixture is smooth and well combined
Tip: Fresh lime juice tastes much brighter than bottled—don't substitute
3
Combine Wet and Dry
- Pour the egg mixture over the couscous mixture in the large bowl.
- Stir together with a rubber spatula until mostly combined.
- Add the drained black beans and chopped cilantro, folding gently until the mixture is cohesive and holds together when pressed.
- The mixture should be moist but not wet; if too sticky, add 2 to 3 tablespoons more panko breadcrumbs; if too dry, add 1 tablespoon water and stir gently.
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Ready when: mixture is cohesive and holds together when a handful is pressed
Tip: Fold gently to preserve the texture of the beans rather than breaking them apart
4
Form and Shape Cakes
- Divide the mixture into 12 equal portions (about 2 to 3 tablespoons each).
- Fill a small bowl with water.
- Dampen your hands in the water to prevent sticking, then take one portion and shape it into a patty about 2 inches in diameter and 3/4 inch thick.
- Place on a sheet of parchment paper.
- Repeat with remaining portions, dampening your hands as needed between each cake.
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Ready when: cakes are evenly sized, about 2 inches across, and hold together without crumbling
Tip: Keep your hands lightly damp with water—this is the key to neat shaping without sticking
5
Oil and Season CakesOven 375°F / 190°C
- Brush or lightly coat both sides of each cake with olive oil, using about 1/2 teaspoon per cake.
- If desired, sprinkle the top of each cake with crumbled cotija cheese for extra flavor and richness.
- Season lightly with additional salt if desired.
- Once the air fryer is preheated to 375°F (190°C), carefully transfer the cakes to the air fryer basket.
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Ready when: all cakes are coated with oil and ready to cook
Tip: The oil is essential for achieving a golden, crispy exterior—don't skip or under-oil
6
Air Fry Until CrispyOven 375°F / 190°C
- Arrange the oiled cakes in a single layer in the air fryer basket without overlapping (work in batches if your basket is small and you have more than 6 cakes).
- Set the air fryer to 375°F (190°C) and air fry for 12 to 15 minutes.
- Halfway through cooking, around 6 to 7 minutes, open the basket and gently shake it side to side to ensure even browning and crisping on all sides.
- The cakes are done when the exterior is golden brown and crispy and they feel firm to the touch.
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Ready when: exterior is golden brown and crispy; interior is warm and firm
Tip: Resist the urge to overcrowd—if your air fryer is small, cook in batches for the best browning and crisping

Good to know

Tips

Don't skip the oil on the cakes—it's essential for achieving that crispy, golden exterior in the air fryer
If your mixture is too wet and sticky, add breadcrumbs 1 tablespoon at a time; if too dry, add water drop by drop until it holds together
These cakes pair beautifully with lime crema (sour cream mixed with fresh lime juice and cumin), sliced avocado, fresh pico de gallo, or a cilantro lime rice
Make extra cakes—they freeze beautifully and reheat perfectly for quick lunches or snacks throughout the week

Make ahead

The roasted sweet potato can be prepared up to 1 day ahead and stored in an airtight container in the refrigerator. The formed cakes can be refrigerated for up to 4 hours before air frying (add 2 to 3 minutes to the cooking time if cooking from cold).

Storage & reheating

Room temperature: up to 2 hours (they will soften). Refrigerator: up to 4 days in an airtight container; reheat in the air fryer at 350°F (176°C) for 5 to 7 minutes until warmed through and re-crisped. Freezer: up to 3 months in a freezer bag; cook directly from frozen in the air fryer at 350°F (176°C) for 10 to 12 minutes until heated through and crispy.

Substitutions

pearl couscous, cooked → regular couscous, millet, or cooked quinoa. Use the same amount cooked; millet will give a slightly chunkier texture
black beans, canned → pinto beans, kidney beans, or chickpeas. Choose any bean you prefer; drained and rinsed weight should be similar
fresh cilantro → fresh parsley, mint, or a combination. If cilantro is not your preference, these herbs provide brightness and freshness
cotija cheese → crumbled feta, queso fresco, or omit entirely. Cheese adds richness but is optional; omitting keeps the recipe dairy-free