Korean Smashed Tofu - Addictive Banchan!

Name: Korean Smashed Tofu - Addictive Banchan!
Cuisine: Asian, Korean
Ingredients: 300 grams Firm Tofu; 1/2 whole Onion; 1 stalk Spring Onion ((forearm-length piece)); 7 Spicy Cheongyang Chili Peppers ((or 3 Jalapeno Peppers)); 10 cloves Garlic; 1/3 Cup Vegetable Oil; 3 Tablespoons Gochugaru Flakes; 2 Tablespoons Soy Sauce; 2 Tablespoons Anchovy Fish Sauce ((Or Any Fish Sauce)); 1.5 Tablespoons Sugar; 1.5 Tablespoons Sesame Oil; Few shakes Sesame Seeds