INGREDIENTS
Flour, for dusting
1
package (8 oz.) crescent roll dough
1
egg, separated
2 tbsp
butter
3
large leeks–trimmed, halved lengthwise and thinly sliced, white and pale-green parts only (about 5 cups)
1
package (8 oz.) diced ham
2 cloves
garlic, minced
1 tsp
minced fresh rosemary
3/4 tsp
Dijon mustard
4 oz
cream cheese, at room temperature