It is important to remove all food particles as they will eventually break down and mold. Strain the oil. Heat the oil in a saucepan, over medium-high heat. coarse salt, optional. Cover tightly, and refrigerate unused portions. Directions: 1. Lower the heat to medium and add in the jalapeno, garlic and salt. Place basil, thyme, rosemary and oregano in a 12 ounce bottle. Depending on how intense you want the flavor, let the oil infuse between 1 and 3 days, shaking it a couple times each day. Seal, and store in a dark cool place. Rick Martinez, associate food editor says a fresh, cold-infused oil will last for about a week, so plan accordingly. Jalapeno & Garlic Infused Oil Recipe (Yield = 1/2 cup) Ingredients: 1/2 cup grapeseed oil 5 garlic cloves, thickly sliced 1 large jalapeno, thickly sliced. Add the garlic, thyme and oil to a eight ounce mason jar. 2. ... (rosemary, thyme, and sage), and for … Using a funnel, pour oil into bottle.