Food & Cooking Recipes Ingredients Seafood Recipes Tonnato Mayonnaise Be the first to rate & review! By Martha Stewart Martha Stewart Martha Stewart is a bestselling author, entrepreneur, and lifestyle expert who has taught millions of people through generations the joy of entertaining, cooking, gardening, collecting, crafting, and home renovating via her eponymous magazine, Martha Stewart Living, Emmy-winning television shows, and 99 books (and counting). Based in Katonah, N.Y., where she helms her 156-acre Bedford Farm, Martha is America's first self-made female billionaire. Editorial Guidelines Updated on November 30, 2018 Rate PRINT Share Close Photo: Justin Walker Prep Time: 10 mins Total Time: 2 hrs 10 mins Yield: 2 cups Instead of making this Italian condiment completely from scratch, start with store-bought mayonnaise and jazz it up with capers, anchovies, oil-packed tuna, and lemon juice. Serve with our showstopping Shrimp and Crudite Platter. Ingredients 1 cup mayonnaise 2 tablespoons capers, rinsed 2 small anchovies, rinsed and mashed (1 ½ teaspoons) 1 jar (7 ounces) oil-cured tuna, drained 2 tablespoons fresh lemon juice ⅓ cup extra-virgin olive oil Directions Puree first five ingredients with 1 teaspoon water in a blender until smooth. With blender running, add oil in a steady stream. Refrigerate in an airtight container at least 2 hours and up to 1 day. Originally appeared: Martha Stewart Living, December 2018 Rate It PRINT