Simple 3-Ingredient Thai Chili & Basil Infused Olive Oil

Simple 3-Ingredient Thai Chili & Basil Infused Olive Oil

Sometimes the best pantry staples are the simplest. Stripping away the shallots, garlic, and dried spices leaves you with an exceptionally clean, vibrant finishing oil: fruity olive oil, the unmistakable floral aroma of basil, and the sharp, clean heat of fresh Thai bird’s eye chilis.

Because there are only three ingredients, technique matters: you want gentle heat to extract the oils and color without scorching the olive oil or browning the herbs.

The Ingredients

  • 1 cup extra virgin olive oil (use a good, fruity everyday EVOO)

  • 6–8 fresh Thai bird’s eye chilis

  • 1 packed cup fresh basil leaves (Thai basil or sweet Italian basil both work beautifully)

Key Prep Tip: Zero Moisture

Rinse your chilis and basil thoroughly, then pat them completely dry with paper towels or a salad spinner. Any lingering water droplets will cause sizzling splatter when hitting the oil and dilute the pure infusion.

1. Prep the Chilis and Basil:

Stem the chilis and slice them in half lengthwise (leaving the seeds in for full heat, or scraping them out for a milder kick). Roughly bruise or tear the dry basil leaves to help release their natural essential oils.

2.  Gently Warm the Olive Oil:Keep heat low – do not let the oil smoke or boil.

Pour the olive oil into a small saucepan and place it over low heat. Add the sliced chilis. Warm slowly for about 5 to 7 minutes until small, gentle bubbles form around the chilis. The chilis will soften and infuse their heat into the oil.

3. Steep the Basil Off the Heat:

Remove the saucepan from the stove entirely. Immediately stir in the fresh basil leaves. The residual heat of the oil will gently wilt and darken the basil without scorching the delicate herb or turning it bitter.

4. Cool and Strain (or Bottle):

Let the mixture steep until it cools completely to room temperature (about 30 to 45 minutes).

  • Clear Drizzling Oil: Pour through a fine-mesh strainer into a sterilized glass jar or bottle, discarding or composting the spent leaves.

  • Rustic Display: Keep a few of the chili halves in the jar for visual appeal and an ongoing slow infusion.

How to Use It

  • Drizzling: Over fresh burrata, sliced garden tomatoes, or avocado toast.

  • Finishing Pasta & Grains: Toss through warm pasta, polenta, or farro with a squeeze of fresh lemon.

  • Dipping: Pour into a shallow dish with coarse sea salt and dip crusty sourdough or focaccia.

  • Seafood & Proteins: Brush over grilled shrimp, salmon, or roasted vegetables straight off the heat.

Storage & Safety Note

When infusing olive oil with fresh, low-acid produce (like fresh peppers and herbs), store the finished oil in an airtight bottle in the refrigerator and use it within 7 to 10 days. If the olive oil solidifies in the fridge, let it sit on the counter for 10 minutes to liquefy before pouring.