Grilled Beef and Onion Panini

• 3 sweet onions, thinly sliced
• 2 tablespoons honey
• 1 tablespoon Dijon mustard
• 1 tablespoon apple cider vinegar
• black pepper
• softened butter
• 8 slices rye bread (or use pumpernickle bread)
• 34 lb thinly-sliced deli roast beef
• 8 slices American cheese

1. Place the onions, honey, Dijon and vinegar in a saucepan; cook stirring over medium heat until the onions are tender (about 8-10 minutes) then season with black pepper.
2. Butter both sides of bread.
3. Top 4 slices bread with roast beef, then 2 slices cheese and 1/4 of the onion mixture.
4. Top with remaining bread slice.
5. Heat an electric panini maker, place a sandwich in and close lid; heat until golden.

sweet onions, honey, mustard, apple cider vinegar, black pepper, butter, rye bread, deli, american cheese

Taken from www.food.com/recipe/grilled-beef-and-onion-panini-206277 (may not work)