01 -
Combine all dough ingredients in a stand mixer fitted with a dough hook. Knead for 10 minutes until the dough is smooth, elastic, and passes the windowpane test.
02 -
Cover and allow the dough to rise in a warm environment for 10–12 hours until doubled in size.
03 -
Melt the butter in a small bowl, then stir in garlic powder and minced parsley. Set aside.
04 -
On a lightly floured surface, roll the dough into a rectangle approximately 35 x 30 centimeters, dusting with flour as necessary.
05 -
Brush the rolled dough surface with a portion of garlic butter. Evenly distribute shredded mozzarella, leaving a 5 cm border on the sides and a 2.5 cm border at the top and bottom. Layer ham or Canadian bacon, salami, and pepperoni across the center.
06 -
Starting along a long edge, tightly roll the dough around the filling. Tuck in the ends and pinch to seal, ensuring a seam along the bottom. Optionally wrap and refrigerate for 12–15 hours for make-ahead preparation.
07 -
Preheat oven to 175°C (350°F). Transfer the stromboli to a parchment-lined baking sheet seam-side down. Brush with remaining garlic butter.
08 -
Bake 25–30 minutes until golden brown and thoroughly cooked.
09 -
Remove stromboli from the oven and brush with any reserved garlic butter. Cool for 15 minutes, then slice. Garnish with grated parmesan if desired and serve.