Ham And Cheese Strudels Appetizer ( Paula Deen)

• 3 tablespoons butter
• 3 large sweet onions, thinly sliced
• 1 tablespoon balsamic vinegar
• 1 (17 1/3 ounce) box frozen puff pastry sheets, thawed (17.3 oz)
• 1 egg yolk
• 1/4 cup mayonnaise
• 1 tablespoon honey mustard
• 1 (8 ounce) package mini cubed ham (drained and divided)
• 1 cup shredded cheddar cheese, divided
• 1 cup shredded mozzarella cheese, divided

1. In a large skillet, melt butter over medium heat. Add onions; reduce heat to medium- low, cover, and cook for 15 minutes, stirring occasionally.
2. Uncover and increase heat to medium high.
3. Continue cooking onions, stirring frequently for 3 to 4 minutes or until onions are caramel colored.
4. Stir in vinegar, and remove from heat; set aside.
5. Preheat oven to 400 degrees.
6. Line 2 baking sheets with parchment paper.
7. On a lightly floured surface roll 1 sheet puff pastry into a 16x10 inch rectangle.
8. Place on prepared baking sheet.
9. Using the times of a fork, prick a 1/4 inch border around the edge of the pastry.
10. In a small bowl, lightly beat egg yolk; lightly brush over border of pastry. Prick remaining pastry with the tines of a fork in the 1/8 inch intervals.
11. Repeat procedure with remaining pastry and beaten egg yolk.
12. Bake for 12 minutes or until golden brown.
13. In a small bowl combine mayo and mustard. Spread evenly over each baked pastry.
14. Top each evenly with ham and cheeses.
15. Spread caramelized onions evenly over cheeses.
16. Bake for 8 to 10 minutes or until hot and bubbly.
17. Cut into 2 1/2 inch squares.
18. Serve immediately.

butter, sweet onions, balsamic vinegar, pastry sheets, egg yolk, mayonnaise, honey, ham, cheddar cheese, mozzarella cheese

Taken from www.food.com/recipe/ham-and-cheese-strudels-appetizer-paula-deen-394948 (may not work)