Best Bombay Sandwich Recipe

Ingredients

• 1 large Yukon gold potato
• 6 slices thin white bread
• 6 tsp salted butter
• 2 slices cheddar cheese
• 1 English cucumber, thinly sliced
• Chaat masala, to taste
• 1 beefsteak tomato, thinly sliced
• Salt, to taste
• Pepper, to taste
• 1 small red onion, thinly sliced
• 1 small avocado, thinly sliced
• 1 bunch cilantro
• 1 bunch mint
• 1 clove garlic
• ¾-inch piece ginger
• 5 Tbsp lemon juice
• 1-2 green Thai chilis
• ¼ tsp salt
• Water, as needed