Fried Egg Sandwich with Kimchi and Bacon

A true fusion of flavor and texture, this egg, bacon, and kimchi breakfast sandwich is one that you'll want to make again and again. Something about the savory snap of crispy bacon paired with slightly spicy fermented cabbage and a perfectly runny yolk makes every bite as satisfying as the last.

To make the mayonnaise

1. Using a blender, purée the egg yolks, Meyer lemon juice, and brown rice vinegar on low speed. Remove the cap from the blender top and, with the blender running, slowly drizzle in the grapeseed oil. Once the mixture begins to thicken and emulsify, increase the blender speed to medium and add 1/2 teaspoon salt. (If you prefer thin mayonnaise, add a tablespoon or two of water to the blender.) Scrape the mayonnaise into a medium bowl, cover with plastic wrap and refrigerate.

To make the sandwich

1. In a large skillet set over medium heat, cook the bacon until both sides are crisp and brown, about 8 minutes total. Transfer to a paper-towel-lined plate and set aside.
2. Heat a grill pan over medium heat for 2 minutes. Drizzle the cut sides of the rolls with some olive oil and place 2 pieces oiled side down in the pan and cook until marked; using a spatula, press down on the bread occasionally until the bread is nicely toasted, about 5 minutes. Repeat with the remaining 2 pieces. Place a top and bottom piece of roll on each of 2 plates. Divide the bacon among the bottom 2 roll pieces.
3. In a medium nonstick skillet set over medium-high heat, melt half of the butter. Add 2 eggs, season with salt and fry until the whites are set and browning around the edges and still underdone around the yolk, about 4 minutes. Use a spatula to flip the eggs over (take care not to break the yolks) and cook on the other side just long enough to cook the white, 30 seconds to 1 minute. Set the eggs on top of the bacon and repeat with the remaining butter and eggs.
4. Give the top halves of the rolls a generous swipe of mayonnaise. Place a good amount of the kimchi over the eggs, cover with the top roll halves, and serve.