Grilled Maple Tofu Burgers - Maple from Canada

Ingredients

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