Bombay Sandwich Recipe

Make the batter

In a medium bowl, whisk together 1 cup gram flour, 3 cups water, 1/2 tsp turmeric, 1/2 tsp red chili powder, 1/4 tsp ajwain and 1 tsp salt until smooth and lump-free. The batter should be pourable but slightly thick (similar to pancake batter). Stir in 2 tbsp oil. Let rest 5–10 minutes.

Prepare cooking surface

Heat a nonstick skillet or tawa over medium heat and lightly grease it with a little oil. This will be used to quickly set the batter on the bread (the classic Bombay sandwich uses a thin spiced batter layer).

If using store-bought chutneys, taste and adjust. For green chutney, blend cilantro, mint, green chilies, lemon juice and salt to make 1/2 cup. For tamarind chutney, use a ready-made 1/4 cup or simmer tamarind paste with jaggery and spices and cool. Keep mayonnaise on hand if you want a creamier layer. Reserve at room temperature.

Prepare vegetables: boil potatoes until tender, cool and slice thinly. Thinly slice cucumber, tomato and onion. Grate beetroot if using. Chop coriander and keep ready.

Season the sliced vegetables lightly with a pinch of salt and sprinkle 1/4 tsp chaat masala and a pinch of black pepper over the potato and tomato slices for extra flavor.

Butter each bread slice lightly on one side (about 3 tbsp total across slices). If making toasted sandwiches, preheat a sandwich press or skillet; if regular, you will assemble without pressing.

Apply batter layer to bread

Place a buttered slice, butter-side down, on the heated skillet for just 6–10 seconds so it warms. Quickly remove to a flat surface. Spoon about 2–3 tablespoons of the prepared batter onto the warmed top (unbuttered side) and spread a thin, even layer with the back of a spoon (coverage like a thin pancake). Return to skillet, cook over medium-low for 30–40 seconds until batter sets and becomes matte (not fully browned). Flip briefly (10–15 seconds) to set the other side if needed. Repeat for each slice you plan to use. This creates the thin spiced club batter layer typical to Bombay sandwiches.

On one batter-coated slice, spread 1–2 teaspoons green chutney evenly (adjust to taste). On the other slice (or the same top layer if assembling open-faced), spread 1 teaspoon tamarind chutney and 1/2 tablespoon mayonnaise if using.

Layer vegetables: place a single layer of potato slices, then a layer of cucumber, then tomato, onion and a little grated beetroot (if using). Sprinkle a light pinch of chaat masala and a grind of black pepper between layers and scatter a few coriander leaves. Keep layers thin so sandwich slices close neatly.

Close the sandwich with the second batter-coated bread slice, chutney side facing the vegetables. Press gently by hand. If making a club (double-layer) sandwich, repeat layering to create three slices stacked with middle slice acting as divider.

TOASTED option

If you want the sandwich toasted: brush the outside of the sandwich lightly with oil or butter and grill in a hot skillet or sandwich press for 2–3 minutes per side until golden and crisp. For a sandwich press, grill 3–4 minutes until both sides are sealed and golden.

REGULAR (untoasted) option

For regular (not toasted), simply press the closed sandwich with a spatula for 15–20 seconds to help set and then cut diagonally into halves or quarters.

Serve immediately with potato chips, lemon wedges and extra chutneys on the side.