In a mixing bowl, combine 1 1/2 cups of warm water (105-115°F) with 1 tsp of honey. Sprinkle the instant yeast over the water and let it sit for about 5-10 minutes until it becomes frothy.
Add the all-purpose flour (3 3/4 cups) and salt (1 1/2 tsp) to the yeast mixture. Pour in 1 tbsp of extra virgin olive oil. Stir with a wooden spoon or dough scraper until a shaggy dough forms.
Turn the dough out onto a lightly floured surface. Knead it for about 5-7 minutes until it becomes smooth and elastic.
Place the kneaded dough in a lightly greased bowl, cover it with a kitchen towel or plastic wrap, and let it rise in a warm place for about 1-2 hours, or until it doubles in size.
While the dough rises, generously grease a rimmed baking sheet with 1/4 cup of extra virgin olive oil.
Once the dough has risen, gently punch it down to release the air. Transfer it to the greased baking sheet and stretch it to fit the pan.
Cover the dough again with a kitchen towel and let it rise for another 30 minutes while you preheat the oven to 425°F (220°C).
In a small bowl, mix together 2 tbsp of extra virgin olive oil, minced garlic (2 cloves), 1/2 tsp of salt, and finely chopped rosemary (1 1/2 tsp). Drizzle this mixture over the risen dough, using your fingers to create dimples all over the surface.
Sprinkle the top with kosher salt or flaky salt (1 tsp). Bake the focaccia in the preheated oven for 20-25 minutes or until it is golden brown and sounds hollow when tapped on the bottom.
Once baked, remove the focaccia from the oven and let it cool for a few minutes in the pan. Then transfer it to a wire rack to cool slightly before slicing. Enjoy warm or at room temperature!