3 grandmother pearl with Recipes

olive oil, chicken (4 to 5 lbs.), cut into 6 pieces (2 bone-in breast halves, 2 bone-in thighs, and 2 bone-in drumsticks), salt, freshly ground black pepper, frozen pearl onions, garlic, unpeeled, fresh thyme, baby yukon gold potatoes , scrubbed and halved, thick-cut bacon , sliced crosswise into 1/4-in.-wide pieces, cremini or button mushrooms, trimmed and cut into quarters, reduced-sodium chicken broth

egg whites , from about 16 large eggs, cream of tartar, salt, sugar, cake flour, pure vanilla extract, pure almond extract, peaches, sliced into thin wedges, lightly sweetened whipped cream , for serving