Umami Mayo

Steps

1. 1Combine the grapeseed oil and the bonito flakes in a small saucepan and cook over low heat until the oil reaches 180°F. Remove from the heat and cool at room temperature for 20 minutes before straining through a fine-mesh sieve. Reserve the bonito flakes for another use.I use these on pizza, in scrambled eggs, and on toast and with Manchego cheese.
2. 2Whisk the egg yolks together with the lemon juice, rice wine vinegar, and salt in a large bowl. Whisk briskly, then add the oil a few drops at a time until the egg mixture thickens and lightens in color a bit. Then, still whisking briskly, increase the oil flow to a constant, thin stream until a smooth mayonnaise texture is achieved.