Garlic and onions.
If you know how to work with these two ingredients, you’ve got a solid foundation for just about every cuisine in the world.
Add ginger, you’re solidly in Asian territory.
Add tomatoes, and you’re working on Italian or Mediterranean cuisine.
Add chiles, and you’ve got the start of a fantastic Mexican dish.
Add coriander, cinnamon, clove, and cardamom, and you’re into Moroccan/Middle Eastern territory.
Add paprika, fenugreek, clove and allspice, and you’ve got most of Africa covered.
These two ingredients have a ton of flavor and nuance, and are the foundation to just about every cuisine in the world. Get to know them, and use them often.
Savor the day.