To make the strawberry vinaigrette, add strawberries, lemon juice and sugar to a blender and blend thoroughly. Using the hole at top of blender lid, slowly pour in vinegar and olive oil. Set aside.
Heat skillet on stove over medium heat.
Butter 8 slices of bread on one side then place bread butter side down in skillet. Place 2-3 sliced apples on top of bread and top with cheese. Drizzle lightly with strawberry vinaigrette.
Place remaining bread on top, butter side up and continue cooking until brown and crispy. Flip sandwich and continue cooking until other side is brown and crispy.
Serve with additional strawberry vinaigrette if desired. Enjoy!
Notes
Gruyere cheese is so mild—don’t tell your kids the fancy name, just let them dive in!