Shallot oil noodles

Ingredients

• 100ml vegetable oil (1-2 tablespoons more as needed)
• 6 round shallots, thinly sliced
• 150g firm tofu, sliced
• 300g thin Chinese wheat noodles
• 4 tablespoons shallot-infused oil (from frying shallots)
• 3 tablespoons light soy sauce
• 1.5 tablespoons sugar
• 3 tablespoons toasted sesame seeds
• 1 spring onion, thinly sliced