Apple and Cheddar Platter with Walnuts

Preparation

1. In a nonreactive container, dissolve the ascorbic acid powder in the water.
2. Core the the green apple, one of the red delicious apples, and the yellow delicious apple. Cut the cored apples into even wedges about ⅜ in. (1 cm) thick. As you work, place the apple wedges in the acidulated water.</