Ingredients

1/2 teaspoon saffron threads 

1/4 cup boiling water, plus up to 2 tablespoons more if needed 

2 garlic cloves 

Coarse salt 

1 cup torn white bread, crust removed 

1 large egg yolk, room temperature 

1 1/2 cups extra-virgin olive oil, divided 

1/4 teaspoon cayenne pepper or 2 crushed dried red chiles 

1/4 teaspoon sweet paprika 

Preparation

Crush saffron, and place in a medium bowl. Pour 1/4 cup boiling water over; steep 15 minutes.

Meanwhile, chop garlic, and add a pinch of salt. Mash into a paste with a knife’s flat side or a mortar and pestle.

Add bread to saffron water; press to absorb.

Add egg yolk; stir to combine. Gradually add 1/4 cup oil, drop by drop, stirring constantly, until smooth. Stir in remaining oil in a steady trickle.

Stir in garlic, cayenne or chiles, and paprika, and season with salt.