8slicesthick-cut peppered baconcooked until crispy
1/4cupmayonnaisehomemade or store bought
FOR THE MAYO:
Slice off the top third of both heads of garlic. Place the garlic into an oven-safe baking dish and drizzle with honey. Cover tightly with foil and bake in a preheated 375 degree oven for about 45 minutes. Remove the garlic using tongs and let cool. Once safe to handle, squeeze the garlic cloves into a bowl and cool completely. Add a halve cup of mayo to the honey roasted garlic and mix, breaking up the roasted garlic cloves. Refrigerate until ready to use.
Preheat griddle to 350°.
Butter one side of each of the slices of sourdough bread. On the un-buttered side smear a tablespoon on each sandwich half. Top both with a little grated Fontina, spinach, peppered bacon and more grated cheese. Top with the remaining slices of sourdough, butter-side-up and griddle until golden. Cover with a domed lid or tented foil to speed up the melting process.