1. Prepare the dough: Mix high-gluten flour and water together until it forms a sticky batter. Transfer the batter onto a work surface and knead it into a smooth dough. Wrap the dough in plastic wrap and let it rest for 20-30 minutes to relax.

2. Roll out the noodles: Divide the dough into several small pieces, keeping the rest covered with plastic wrap to prevent drying. Use a rolling pin to roll out the dough into thin and even sheets. You can adjust the thickness of the noodles according to your preference.

3. Cook the ramen noodles: Bring a large pot of water to a boil and add a pinch of salt. Carefully drop the rolled-out noodle sheets into the boiling water, gently stirring to prevent sticking. The cooking time will depend on the thickness of the noodles and personal preference, typically ranging from 2-4 minutes.

4. Prepare the broth: Choose the type of ramen broth you want, such as soy sauce, miso, or tonkotsu (pork bone). Follow the recipe for the selected broth type, adding the desired seasonings and ingredients.

5. Assemble the ramen: Remove the cooked ramen noodles from the boiling water and drain well. Place the noodles in a large bowl. Pour the hot broth over the noodles, and then add your desired toppings such as roasted pork, boiled eggs, seaweed, scallions, and other ingredients.

6. Customize the flavor: Add any additional seasonings according to your taste preferences, such as chili oil, sesame seeds, garlic, etc., to enhance the flavor.

Once prepared, use chopsticks to mix the noodles and toppings, and savor the deliciousness of the homemade Japanese ramen.

Please note that the specific methods and ingredients for making ramen may vary based on region and personal preferences. The steps provided above offer a basic guide, and you can adjust and innovate based on your own taste and preferences.