Heat a pot over medium heat and toast the sesame seeds.

Transfer the seeds to a blender.

Add the oil to the pot.

When oil is hot add the morita chilies and fry until the chilies start to puff up. This should take less than 30 seconds.

Transfer chilies to blender. Then fry the arbol chilies for a few seconds until slightly darkened in color. Then transfer to blender.

Fry the garlic cloves until they turn a golden color and transfer to blender.

Let the chilies and the oil in the pot cool for about 10-15 min.

Blend the ingredients in the blender for about 10 seconds or until ground into a pulp, add a little bit of the oil if needed.

Add the rest of the oil and blend for 20 seconds more.

Transfer salsa to a bowl and add vinegar and salt to taste.

Serve and refrigerate any leftovers.