Follow these simple steps to create your Chipotle Focaccia with Garlic-Onion Topping:

1. Prepare the Dough: In a large mixing bowl, combine warm water and yeast. Let it sit for about 5 minutes until it becomes frothy.
2. Mix the Ingredients: Add flour, salt, 2 tablespoons of olive oil, and chopped chipotle pepper to the yeast mixture. Stir until the dough starts to come together.
3. Knead the Dough: Transfer the dough to a floured surface and knead for about 8-10 minutes until it becomes smooth and elastic.
4. First Rise: Place the dough in a greased bowl, cover it with a clean kitchen towel, and let it rise in a warm area for about 1 hour or until it doubles in size.
5. Prepare the Topping: While the dough is rising, heat 1 tablespoon of olive oil in a skillet over medium heat. Add sliced onion and sauté until translucent, about 5 minutes. Add minced garlic and cook for an additional 1-2 minutes, then remove from heat.
6. Shape the Dough: Once the dough has risen, punch it down to release air. Transfer it to a greased baking sheet or a rectangular pan, stretching it out to fit the pan.
7. Second Rise: Cover the dough again and let it rise for another 30 minutes.
8. Preheat the Oven: Preheat your oven to 425°F (220°C).
9. Add Toppings: After the second rise, use your fingers to create dimples all over the surface of the dough. Spread the sautéed garlic and onion mixture evenly over the top. Sprinkle dried oregano for added flavor.
10. Bake: Place the focaccia in the preheated oven and bake for 25-30 minutes or until golden brown.
11. Cool: Remove the focaccia from the oven and let it cool in the pan for about 10-15 minutes before transferring it to a wire rack.
12. Slice and Serve: Once cooled, slice the focaccia into squares or rectangles for serving.