The combination of avocado and citrus isn’t particularly novel, but that doesn’t keep it from being welcome in the winter. Though the salad is dead simple to make, its success relies on a nice assortment of citrus. You want a combination of sweet and tart varieties; beyond that, the specifics are unimportant. Choose avocados that yield to slight pressure at the stem end; if you’re unsure about their ripeness (selecting ripe avocados is not a strength of mine), buy one or two more than you need as an insurance policy.
Cutting the avocados and citrus into different shapes isn’t essential, but it does prevent the salad from looking too flat on the plate. (God is in the details! Or so they say.) If you can find Meyer lemons, use their juice in the vinaigrette. —Jessica
In a small bowl, whisk together the shallot, mustard, and lemon juice and let
stand 10 minutes, which will mellow the harshness
of the raw shallot. Whisk in the olive oil and continue whisking until the dressing is emulsified, then season to taste with salt and pepper. Set aside.
Cut each avocado half lengthwise into thirds, then cut each avocado baton in half diagonally and peel each piece. With a sharp knife, cut the ends off the oranges and the grapefruit. Working with one piece of fruit at a time, use a sharp knife to cut off
the peel and pith, following
the curve of the fruit. Cut the oranges into wagon wheels and transfer to a bowl. With a sharp knife, cut each grapefruit segment free of
its membrane and add it to the bowl with the oranges. Squeeze the grapefruit shell over the bowl to collect the juice. Peel the tangerines, separate the segments, and add them to the bowl with the other citrus. Toss gently to combine.
Arrange the fruit on a platter and add the avocado pieces, tucking them in and around the fruit. Spoon the shallot vinaigrette over and season with a flaky salt and pepper. Serve immediately.