Preheat the oven to 375 degrees . Bake the bacon on a broiler pan until crisp, about 15 minutes.
Preheat a griddle over medium heat. In a large skillet, melt 3 tbsp. butter over medium-high heat until foaming. Add the apples, thyme, cinnamon, nutmeg and a little salt. Cook until softened, 4 to 5 minutes. Add the lemon juice and brown sugar, flip the apples and cook for 1 minute. Add the calvados, if using, and cook to reduce for 1 minute. Add the maple syrup and lower the heat to a simmer.
Combine the pancake mix, 1 egg and the milk. Butter the griddle and cook the pancakes in batches to make eight 4-inch cakes.
In a large skillet, fry the remaining 4 eggs in some melted butter to order.
Stack each plate with a pancake, 3 crisscrossed slices of bacon, a fried egg, a second pancake and the apples.