HEAT oven to 425°F.
WHISK egg and half-and-half in small bowl until blended. Combine flour and sugar in medium bowl. Cut in butter with pastry blender or 2 knives until mixture is the size of peas. Add egg mixture gradually, adding only enough to moisten flour and hold dough together.
TURN onto lightly floured surface. Knead gently 2 to 3 strokes. Pat or roll dough gently to 1/2 to 3/4-inch thickness.
CUT using floured 2 1/2 to 3-inch biscuit cutter, leaving as little dough as possible between cuts. Gather remaining dough; reroll one time. Cut as described above. Discard scraps. Place biscuits 2 to 3 inches apart on ungreased baking sheet. Brush tops lightly with half-and-half or milk.
BAKE 12 to 15 minutes, or until golden brown.
TOSS berries together in medium bowl. Split shortcakes in half; spoon fruit between layers. Replace top layer; spoon on additional fruit. Top with whipped cream. Garnish with fresh whole fruit.