Boil pasta according to the manufacturer's instructions. Strain and leave to one side.
Slice the mushrooms into bite-sized pieces and mince the garlic.
Place a frying pan over a medium heat and add the olive oil. Once the pan is hot, sauté the mushrooms and garlic for a few minutes till the mushrooms are done.
Mix OFJ dashi powder with 1 teaspoon of hot water. Then add the pasta, single cream and dashi paste to the frying pan. Stir lightly until the sauce is fully incorporated with pasta.
Add salt and pepper to taste.
Garnish with chopped basil or shiso and bonito flakes.
• Optional: Add sliced bacon or canned tuna flakes for a meatier pasta.