Add more of the main ingredients to dilute the spice
Stir in dairy such as yogurt, sour cream, cream, milk, or cheese
Add a sweetener like sugar, honey, or maple syrup
Add acid such as lemon juice, lime juice, or vinegar in small amounts
Add starches like rice, potatoes, bread, pasta, or beans
Add coconut milk or coconut cream
Add more sauce, broth, or liquid
Remove visible chili pieces, seeds, or spicy paste if possible
Serve with plain sides like rice, bread, or tortillas
Balance with mild vegetables or legumes
Let the dish simmer longer if appropriate to mellow the heat
Start with small amounts of spice next time and adjust gradually