1Remove stems and seeds from the Ancho chiles and Guajillo chiles. Place them in a heatproof bowl, cover with hot water, and let them soak for 20-30 minutes until softened.
3Drain the rehydrated Ancho chiles and Guajillo chiles. Add them to a blender with the chopped White onion, Garlic cloves, Cumin powder, Mexican oregano, 5g of Salt, and 250g of Chicken broth. Blend until very smooth, adding more Chicken broth if needed to achieve a pourable consistency.