Ok Sroach - I'm a little late but here it is! I had to dig it out. And I forgot...
3 heads of garlic, peeled
4-5 cups of vegetable oil (canola)
1 lemon, freshly juiced
1 teaspoon of salt (or to taste)
Add the garlic and salt in the food processor and run for 10-20 seconds. Stop processor, scrape garlic down the sides then repeat the process 3-4 times until the garlic turns to a paste.
With the motor running, add 1/2 a cup of the oil in a very thin stream. You should see the garlic mixture begin to emulsify. Add ½ teaspoon of lemon juice very slowly, in a thin stream. Wait on it a few seconds until the lemon juice is well absorbed, then go back to repeating the same process of adding slowly ½ cup of oil, waiting a few seconds, then adding ½ teaspoon of lemon juice until you’ve used all ingredients. This process should take 8-10 minutes.
It's a bit of a tricky emulsion but once you get it right it looks like thick mayonnaise. We slather this on the corn after it comes off the grill and wrap them in aluminum foil.