Pesto

30 g pine nuts
50 g basil leaves
2 garlic cloves
2 tablespoons nutritional yeast
50 ml  olive oil
lemon juice (to taste)
salt and pepper

Place all ingredients except the olive oil in a blender, turn the blender on and add the olive oil, little by little, until you get a fine paste.

In the absence of a blender you can use a  garlic/spices mortar.