A fiesty spread that's good on ham sandwiches too. Prep Time: about 20 minutes. Notes: Have ingredients at room temperature to help the mayonnaise thicken (put the cold egg in warm water to help it warm up). Seed the chile if you want a milder mayo. For a quick version, or if you're concerned about possible bacteria in raw eggs, whirl the garlic, chile, 1/2 tsp. salt, and 1 1/2 tsp. lemon juice in a food processor, then whirl in 1/2 cup store-bought mayonnaise.
In a food processor, whirl egg, garlic, chile, 1/4 tsp. salt, and 1 tbsp. lemon juice until mixture thickens slightly, about 1 minute. Add oil drop by drop through top of processor until mixture starts to get quite thick, then drizzle in the rest in a slow stream. Whirl in more salt and lemon juice to taste. Mayonnaise keeps, covered and refrigerated, 1 day.
Note: Nutritional analysis is per tbsp.