Preheat the Oven: Set the oven to 375°F (190°C) and line a baking tray with parchment paper.
Mix Dry Ingredients: Take a large bowl, combine almond flour, psyllium husk powder, baking powder, and salt. Mix them well.
Melt the Cheese: Take another bowl, melt the mozzarella and cream cheese together in the microwave until it gets smooth. Stir until combined.
Add Wet Ingredients: Whisk the eggs and vinegar into the cheese mixture, then slowly stir in the dry ingredients.
Form the Dough: Add warm water a little at a time until a firm, slightly sticky dough forms. Let it sit for 5 minutes.
Shape the Rolls: Divide dough into 6 equal portions. Shape into hoagie rolls and place on the tray.
Bake: Bake for 25 minutes until it gets golden brown and firm. Let rest before slicing.
