This video explains what 'red oil' chili bean paste (hongyou doubanjiang) is in Sichuan cooking, and demonstrates how to take store-bought, oil-less Pixian doubanjiang and fry it at home with oil to develop color and flavor so it's ready to use. It also shows an advanced version: blending different ages of doubanjiang with aromatics like onion and ginger for a more complex homemade paste.
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