Onion Grilled Cheese Sliders

Directions

1. Step 1
   Adjust oven rack to lower-middle position and heat oven to 350° F.

2. Step 2
   Heat oil in large skillet over medium heat. Add onions and sauté, until caramelized.

3. Step 3
   Stir in thyme, a generous sprinkling of salt and pepper, and the apple butter. Cook to heat through.

4. Step 4
   Set bun bottoms and tops on a sheet pan (cut side up). Bake 5 minutes just to toast the buns slightly.

5. Step 5
   Top each bottom bun with a slice of cheese, then a Tablespoon of the cooked onion.

6. Step 6
   Spread each bun top with a teaspoon of mustard and cap each sandwich.

7. Step 7
   Bake sliders until cheese melts, 5 to 7 minutes. Serve.