Grown-Up Grilled Cheese Sandwich

• Produce

  • 1 Onion, large

• Baking & Spices

  • 1/8 Teaspoonblack pepper

• Oils & Vinegars

  • 1/4 Cupbalsamic vinegar
  • 2 Teaspoonsvegetable oil

• Bread & Baked Goods

  • 4 slices Bread

• Dairy

  • 4 slices Cheddar cheese, sharp
  • 1 Tablespoonunsalted butter

• Other

  • 1 Cupkale leaves
  • 2 Tablespoonssugar
  • 1 Teaspoonsalt

Found on justataste.com