Grilled Avocado Cheese Sandwich

Two big slices of artisan bread (I used rosemary olive oil this time)
Half of a ripe avocado slices thin
grated smoked Gouda cheese
thin slices tomato
thin sliced red tomato
bacon fat (yes bacon fat)

Butter the bread with cool bacon fat. Assemble the sandwich with avocado slices, cheese, tomato and onions. Grill on a griddle until browned and the cheese is melted. I discovered with this sandwich that the bacon fat makes the most incredible crisp bread.