Garlic soup – easy, vegan, low fat + calores

Ingredients:
oil : 1 tbsp
garlic: 1 bulb
potatoes : 500g / 17,6 oz
vegetable stock( from risotto recipe): 1,5 l / 6,3 cups
cornstarch: 1 tbsp
soy milk: 100ml / 3,5 cups
salt: 1 tsp

Calories and macros per 100g:
energy: 26,5 kcal
protein: 0,6 g
carbs: 4,3 g
fats: 0,6 g