Spicy Garlic Oil Noodles

Name: Spicy Garlic Oil Noodles
Ingredients: 7 oz udon noodles (or noodle of choice; approx. 200g); 4 green onions (thinly sliced; white ends removed; also called scallions); 4 cloves garlic (minced; approx. 2 tbsp or 28g); 2 tsp red pepper flakes (adjust to taste); 1 tsp Kashmiri chili powder (or any mild chili powder; approx. 2g); 1/4 cup low sodium soy sauce (approx. 60ml); 1 tsp granulated sugar (approx. 4g); 2 tbsp butter (or plant-based margarine; approx. 28g); 2 tsp sesame oil (approx. 9g); 1/4 cup vegetable oil (for pouring over the aromatics; approx. 50g); cilantro leaves (optional); sesame seeds (optional; for garnish)