• In a large bowl, combine the first seven ingredients. Unroll one tube of crescent dough onto an ungreased baking sheet; seal seams and perforations.
• Spread half of corned beef filling down center of rectangle. On each long side, cut 1-in.-wide strips to within 1 in. of filling. Starting at one end, fold alternating strips at an angle across filling; seal ends. Repeat with remaining crescent dough and filling. Brush egg white over braids; sprinkle with sesame seeds.
• Bake at 375° for 25-30 minutes or until golden brown. Cool on wire racks for 5 minutes before cutting into slices. Refrigerate leftovers. Yield: 2 loaves (8 servings each).
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