A sour cream and buttermilk dressing adds tang to this sweet-and-savory salad.
In a large bowl, whisk together sour cream, buttermilk, and vinegar; season generously with salt and pepper.
Cut apple slices in half crosswise; add to bowl along with endives, grapes, and pecans. Toss to combine. Serve immediately.
Japanese Fujis are large with a firm, very sweet flesh. Unlike other apples, their taste actually improves with age. Fujis are good for snacking or cooking.