Cassia’s Butter Duck with Makhani Sauce Recipe

By Sid Sahrawat

Cassia’s Butter Duck with Makhani Sauce Recipe
This recipe has been a signature dish called Delhi Duck at Cassia for many years. It resonates with everyone who is a fan of butter chicken.  Swapping the chicken for duck makes this a richer dish while our dairy free Makhani sauce gives it all the flavours you love in a traditional butter chicken curry.

Serves 4-6

Difficulty: moderate 2

Preparation time 15 minutes

Cooking time 1 and half hour



6 garlic cloves, finely grated

4 teaspoons finely grated peeled ginger

1 teaspoon Cassia garam masala Spice blend

1 1/2 cups whole-milk yogurt (not Greek)

1 tablespoon kosher salt

1 whole duck

2 tablespoons of Cassia tandoori masala spice blend

1 jar of 500ml Cassia at Home Makhani sauce

Chopped fresh coriander sprigs for garnish

Steamed basmati rice (for serving)

Garnish- Optional

1 Kumara sliced very thinly

Oil for frying

Bunch of radishes, trimmed and cut into quarters

1 cup water

½ cup vinegar

100 gms castor sugar



1. Combine garlic, ginger, garam masala in a small bowl. Whisk yogurt, salt, and spice mixture in a medium bowl with the tandoori spice mix; rub all over duck and turn to coat. Cover and chill 4-6 hours. 

2. Meanwhile, preheat oven to 200 deg. C. Line a rimmed baking sheet with foil and set a wire rack inside sheet. Arrange duck on rack in a skin side up. Cook until duck starts to blacken in spots (it will not be cooked through), about 20 minutes. Turn oven to 180 deg c and cook for a further 40 minutes

3. Warm the Cassia at Home Makhani sauce in a saucepan until it simmers. Add water, coconut milk or cream if you wish to adjust the sauce consistency to your liking.

3. For the garnish, heat oil in a saucepan and deep fry the kumara slices then drain on a paper towel to drain excess oil, set aside. In a saucepan bring the water to boil then add the vinegar and sugar to the saucepan. Once the sugar has dissolved turn off the heat and add the radish to the pan to pickle it. Set aside.

4. Portion duck into even pieces, add to sauce, and simmer, stirring occasionally, until duck is cooked through, 8-10 minutes. 

5. Serve with rice.

6. Garnish with rocket flowers or other edible flowers, pickled radishes and Kumara crisps.

TIP: Duck can be roasted a day ahead. Cover; chill. Reheat before serving. 

Spices can be found in any Indian grocery store or from Cassia at Home at


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