Vegan Gnocchi alla Sorrentina

Ingredients

• 1kg/35oz starchy potatoes
• 1 Tbsp salt
• 1 1/2 – 2 cups (200g/7oz) plain flour
• 3 Tbsp olive oil
• 2 garlic cloves, thinly sliced
• 450g/16oz tomato passata
• few basil leaves
• 1/2 tsp salt
• 1 cup soy milk
• 2 Tbsp tapioca starch
• 1/2 cup sunflower oil, or neutral flavoured oil
• 3 Tbsp nutritional yeast flakes or vegan parmesan