Vegan Custard Sauce {with Rose Water or Vanilla}

non-dairy milk, 500 ml soy milk, almond or coconut milk are good

cornstarch, more for thicker sauce, substitute with arrowroot powder

– 3 tablespoons maple syrup, or other sweetener to taste

turmeric powder, or vegan yellow food colouring

rose water, or 1 teaspoon vanilla extract / 1 vanilla bean