Grilled Maple Tofu Burgers

Ingredients

• 1 bloc (454 g) (1 bloc (1 lb)) extra-firm tofu
• 60 ml (1/4 cup) soy sauce
• 30 ml (2 tbsp) maple syrup (preferably dark syrup for its robust flavour)
• 30 ml (2 tbsp) ketchup
• 15 ml (1 tbsp) vinegar
• 10 g (1 tbsp) black chia seeds
• 1 clove garlic, chopped
• 1 pinch ground black pepper
• 2 g (1 tsp) chipotle powder (smoked Mexican chile) or to taste
• 115 g (1/2 cup) mayonnaise
• 4 burger buns
• Toppings, your choice: tomato slices, cucumber slices, lettuce, etc.