Heat a non-stick skillet (around 10 inches) over medium heat and lightly grease it with olive oil.
Mix Dry Ingredients:
In a large mixing bowl, whisk together the almond flour, coconut flour, baking powder, salt, and garlic powder.
Add Wet Ingredients:
In a separate bowl, whisk the eggs and olive oil. Add them to the dry ingredients and stir well until everything is combined into a dough-like consistency.
Add Cheese:
Stir in the shredded mozzarella cheese and Parmesan cheese. The cheese will melt and help bind the dough together.
Shape the Focaccia:
Transfer the dough to the greased skillet and use your fingers to gently press it out, spreading it evenly into the shape of a focaccia.
Top with Rosemary:
Sprinkle fresh rosemary evenly over the top of the dough. You can press the rosemary lightly into the dough with your fingers.
Cook the Focaccia:
Cover the skillet with a lid and cook over low heat for about 12–15 minutes or until the bottom is golden brown and the center is firm. If you want a crispy crust, you can increase the heat for the last 2 minutes to get a nice golden color.
Optional:
For an extra touch, sprinkle some flaky sea salt on top for a savory finish.
Serve:
Once done, remove from the skillet and let it cool for a couple of minutes. Slice and serve warm!